In Half Moon Bay, the average low-temperature is 47.5°F (8.6°C). Half Moon Bay Airport (5.2 miles) Relative Humidity 87% Half Moon Bay Airport (5.2 miles) Rain Today 0in (0in Last Hour) Half Moon Bay Airport (5.2 miles) Wind NNW 4.6mph Half Moon Bay Airport (5.2 miles) Dew Point 37.3 °F Half Moon Bay Airport (5.2 miles) Pressure Average Weather during December in Half-moon Bay (Southland), New Zealand The average minimum temperature (usually the minimum temperature is noted during the night) in Half-moon Bay in December is 8.0°C (46.4°F). 3 am. This section reports on the wide-area average surface temperature of that water. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Low 42F. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. Close. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Tue Dec 15. Rain tomorrow morning and afternoon. December 21 . The most accurate 10 day weather forecast for Half Moon Bay, complete with highs, lows, chance of precipitation and more from weatherfarm.com Northern California has received 91% of its historic average rainfall during La Niña winters since 1954, according to an analysis by Golden Gate Weather Services in Half Moon Bay… Weather Forecast, Half Moon Bay. Great savings on Half Moon Bay, California fishing charters online. Half Moon Cay isn't like those places though, and it's 'peak of winter' has an average high temperature of a very warm 26°C (79°F) and average low temperature of 18°C (65°F). Half Moon Bay State Beach weather forecast issued today at 4:21 pm. High near 60F. December is the most wet month of the year. Fetch the Half Moon Bay, California weather forecast and observations from AerisWeather. Is it ocean temperature comfortable for kids in December … Half Moon Bay weather, Melbourne, VIC - 7-day weather forecast and current temperature and Melbourne weather radar | Resources, A warm and sunny day on a scenic beach in Half Moon Bay, California, In Half Moon Bay, California, the average length of the day in. The percentage of time spent in various temperature bands. The shaded overlays indicate night and civil twilight. ... December 2020 . The shaded overlays indicate night and civil twilight. The area within 2 miles of Half Moon Bay is covered by artificial surfaces (23%), water (22%), grassland (15%), and herbaceous vegetation (13%), within 10 miles by water (40%) and trees (24%), and within 50 miles by water (55%) and grassland (13%). Average Weather in December in Half Moon Bay California, United States. Consider visiting Half Moon Cay in the months of February, March, November, December, for the best beach weather.Also consider one of our other suggestions for December. ☂ Online precipitation map and other weather maps. The black line is the percentage chance that a given day is within the growing season. NOAA is still working on it. No … The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). Daily low temperatures decrease by 2°F, from 47°F to 45°F, rarely falling below 38°F or exceeding 53°F. The lowest daily average low temperature is 45°F on December 30. BOOK NOW . Good availability and great rates. ☂ Online precipitation map and other weather maps. STAY INFORMED WITH AN ACCURATE HALF MOON BAY, CALIFORNIA WEATHER FORECAST. The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. HOLIDAY MOVIES NOVEMBER 23, DECEMBER 14, 21 AND 28 In celebration of the season, holiday movies will be shown at the Ocean Terrace at The Ritz- Carlton. 48.7°F 9.3°C. Throughout May, 0.8" (19.3mm) of precipitation is accumulated. 48.7°F 9.3°C. Monthly averages Half Moon Bay Longitude: -122.501, Latitude: 37.5134 Average weather Half Moon Bay, CA - 94019. There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Half Moon Bay. Clear skies. Daily low temperatures decrease by 2°F, from 47°F to 45°F, rarely falling below 38°F or exceeding 53°F. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. Half Moon Bay weather, Melbourne, VIC - 7-day weather forecast and current temperature and Melbourne weather radar The predicted tide times today on Thursday 17 December 2020 for Half Moon Bay are: first low tide at 5:56am, first high tide … For reference, on September 16, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 18, the least muggy day of the year, there are muggy conditions 0% of the time. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. ... December 20 . Rain today through Thursday. Marine Weather and Tides Half Moon Bay, CA Version 3.4 NOTICE 8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. December is a hot and dry time for sunbathing in Half Moon Cay.December is a good month for swimming in Half Moon Cay with warm sea temperatures. December 21 . Earliest sunset is on December 5 or December 6. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. The number of hours during which the Sun is visible (black line). This report illustrates the typical weather in Half Moon Bay, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. Half Moon Bay, CA (94019) Today. The month with the lowest number of rainy days is June (3 days). Within 10 miles contains very significant variations in elevation (2,375 feet). Weather forecast in … The clearest day of the month is December 7, with clear, mostly clear, or partly cloudy conditions 52% of the time. as of 3:00 am PST. Station Data. Chance of precipitation is 90%. Fetch the Half Moon Bay, California monthly weather summary from AerisWeather. 8/18/2020 NOAA continues to have trouble. December is a hot and dry time for sunbathing in Half Moon Cay.December is a good month for swimming in Half Moon Cay with warm sea temperatures. Half Moon Bay, California, USA - December weather averages including high and low temperatures, humidity, rainfall, snowfall, daylight, sunshine, UV index, and sea temperature. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. Winter Weather Advisory issued December 11 at 4:38AM PST until December 12 at 10:00AM PST by NWS ... Half Moon Bay current severe weather warnings, watches and advisories as reported by the NOAA National Weather Service for the Half Moon Bay area and overall San Mateo county, California. 8/18/2020 NOAA continues to have trouble. Shortwave radiation includes visible light and ultraviolet radiation. Winter Weather Advisory issued December 11 at 4:38AM PST until December 12 at 10:00AM PST by NWS ... Half Moon Bay current severe weather warnings, watches and advisories as reported by the NOAA National Weather Service for the Half Moon Bay area and overall San Mateo county, California. For the purposes of this report, the geographical coordinates of Half Moon Bay are 37.464 deg latitude, -122.429 deg longitude, and 69 ft elevation. The wettest month (with the highest rainfall) is January (130.8mm). 3 month history Half Moon Bay 3 Month History In December, the average high-temperature is practically the same as in November - a moderate 58.8°F (14.9°C). MERRA-2 Modern-Era Retrospective Analysis. High near 60F. For reference, on September 11, the hottest day of the year, temperatures in Half Moon Bay typically range from 55°F to 67°F, while on December 29, the coldest … Clear skies this evening will give way to mostly cloudy skies overnight. The figure below presents a compact representation of key lunar data for December 2020. weather.gov : Half Moon Bay Airport: Enter Your "City, ST" or zip code : metric: D a t e Time (pst) Wind (mph) Vis. Averages are for San Francisco International Airport, which is 10 miles from Half Moon Bay. Average water temperature in Half Moon Cay in December is 26.1°C/79°F and therefore suitable for comfortable swimming. The lowest average daily incident shortwave solar energy during December is 2.2 kWh on December 22. The average daily incident shortwave solar energy in Half Moon Bay is essentially constant during December, remaining within 0.1 kWh of 2.3 kWh throughout. The average minimum temperature (usually the minimum temperature is noted during the night) in Half Moon Bay in December is 8.0°C (46.4°F). Half Moon Bay is a coastal city in San Mateo County, California, United States, approximately 25 miles (40 km) south of San Francisco.Its population was 11,324 as of the 2010 census.Immediately at the north of Half Moon Bay is Pillar Point Harbor and the unincorporated community of Princeton-by-the-Sea.The urban area had a population of 20,713 at the same census. Weather conditions with updates on temperature, humidity, wind speed, snow, pressure, etc. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . Updated: Sunday, December 13, 2020 Sun Dec 13. Clear skies. For each station, the records are corrected for the elevation difference between that station and Half Moon Bay according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. The hourly average wind direction in Half Moon Bay throughout December is predominantly from the north, with a peak proportion of 39% on December 9. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Winds NNE at 5 to 10 mph.. Tonight. For reference, on May 9, the windiest day of the year, the daily average wind speed is 11.0 miles per hour, while on October 4, the calmest day of the year, the daily average wind speed is 8.0 miles per hour. Check In Dec 18 Enter Check In Check Out Dec 19 Enter Check Out code. Half Moon Bay tide chart key: The tide chart above shows the height and times of high tide and low tide for Half Moon Bay, California. The average hourly wind speed in Half Moon Bay is essentially constant during December, remaining within 0.2 miles per hour of 10.0 miles per hour throughout. [2337933], Weather Atlas | © 2002-2020 | Yu Media Group d.o.o. Saturday, December 19. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Wind guest will occasionally be left off graphs. The average temperature over the next 25 days in Half Moon Cay from this forecast is 26°C (79°F) and there will be 2 days of sunshine. We assume no responsibility for any decisions made on the basis of the content presented on this site. This report illustrates the typical weather in Half Moon Bay, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Lower dew points feel drier and higher dew points feel more humid. NOAA is still working on it. The month with the lowest average high temperature is January (14.7°C). Last Spring High Tide at Half Moon Bay was on Mon 14 Dec (height: 2.07m 6.8ft). December is a hot and rainy time for sunbathing in Half Moon Bay.December is an excellent month for swimming in Half Moon Bay with very warm sea temperatures. In this report, we use a base of 50°F and a cap of 86°F. Half Moon Bay, CA - Weather forecast from Theweather.com. The month with shortest days is December (Average daylight: 9.6h). The warmest sea in Half Moon Cay in December is 27.5°C/81.5°F, and the coldest sea temperature in December is 24.4°C/75.9°F. For reference, on September 11, the hottest day of the year, temperatures in Half Moon Bay typically range from 55°F to 67°F, while on December 29, the coldest day of the year, they range from 45°F to 57°F. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Half Moon Bay area. The average sliding 31-day rainfall during December in Half Moon Bay is gradually increasing, starting the month at 2.9 inches, when it rarely exceeds 5.9 inches or falls below 0.4 inches, and ending the month at 3.3 inches, when it rarely exceeds 6.9 inches or falls below 0.3 inches. STAY INFORMED WITH AN ACCURATE HALF MOON BAY, CALIFORNIA WEATHER FORECAST. Temperature and Dew Point. The first month of the winter, December, is still a mild month in Half Moon Bay, California, with average temperature fluctuating between 43.3°F (6.3°C) and 58.8°F (14.9°C). Over the course of December in Half Moon Bay, the length of the day is essentially constant. December Solstice (Winter Solstice) is on Monday, December 21, 2020 at 2:02 am in City of Half Moon Bay. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. For reference, on June 20, the longest day of the year, the Sun rises at 5:48 AM and sets 14 hours, 45 minutes later, at 8:34 PM, while on December 21, the shortest day of the year, it rises at 7:20 AM and sets 9 hours, 35 minutes later, at 4:55 PM. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). Temperature In December, the average high-temperature is practically the same as in November - a moderate 58.8°F (14.9°C). Find Out More. Average Weather during December in Half Moon Bay (California), United States of America. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Half Moon Bay. The month with the highest average low temperature is August (11.5°C). 1-Day 3-Day 5-Day Graph Plots Open in Graphs Clear skies. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. Loading Fish Calendar! Book Now. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. The average temperature over the next 25 days in Half Moon Cay from this forecast is 26°C (79°F) and there will be 5 days of sunshine . We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Find the most current and reliable 7 day weather forecasts, storm alerts, reports and information for [city] with The Weather Network. Monday. Half Moon Bay Weather Forecasts. Half Moon Bay Fishing Report . I am working with NOAA to resolve the issue. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The month with the longest days is June (Average daylight: 14.7h). The amount of rain in December is high with an average of 115mm (4.5in). The earliest sunrise of the month in Half Moon Bay is 7:06 AM on December 1 and the latest sunrise is 18 minutes later at 7:24 AM on December 31. METAR text: KHAF 132015Z AUTO 19010G19KT 160V230 3/4SM BR OVC003 12/12 A3016 RMK AO2: Conditions at: KHAF (HALF MOON BAY , CA, US) observed 2015 UTC 13 December 2020 The warmest day over the next 25 days weather in Half Moon Cay is forecast to be Thursday 24th December 2020 at 29°C (84°F) and the warmest night on Thursday 17th December 2020 at 23°C (73°F). The solar day over the course of December. Station Data. Consider visiting Half Moon Cay in the months of February, March, November, December, for the best beach weather.Also consider one of our other suggestions for December. Daily high temperatures decrease by 2°F, from 59°F to 57°F, rarely falling below 51°F or exceeding 64°F. Strongest 16 January, 2019 36.9mph S; Average 2010–Present 8.5mph For reference, on January 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 54%, while on August 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 91%. Half Moon Bay is located near a large body of water (e.g., ocean, sea, or large lake). Consider visiting Half Moon Bay in the months of June, July, August, September, for the best beach weather.Also consider one of our other suggestions for December. Updated: December 19, 2020 @ 7:04 am Nearby Weather Stations. Weather Sky Cond. Clear skies. The amount of rain in December is high with an average of 115mm (4.5in). Low 42F. half moon bay Half Moon Bay Nonprofit Raises Over $25M to Build Housing for Adults With Special Needs Published December 12, 2020 • Updated on December 12, 2020 at 11:55 am (mi.) Updated: December 19, 2020 @ 7:04 am The amount of rain in December is high with an average of 97mm (3.8in). BOOK NOW . Close. The coldest month (with the lowest average low temperature) is January (6.1°C). Mon Dec 14. The average hourly temperature, color coded into bands. Weather forecast in … This … The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. Napa and Kentfield tied their records at 74 and 72 degrees each. Find Out More. Information about regional climates. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. To set your location please use the search box to find your location and then click "set as my default location" on the local weather page. In terms of daylight, this day is 5 hours, 10 minutes shorter than on June Solstice. Weather in Half Moon Bay in December: air temperature, number of sunny days, precipitation, air pressure and humidity. The grey shading corresponds to nighttime hours between sunset and sunrise at Half Moon Bay. Wed Dec 16. Today Sunday, 20 th of December of 2020, the sun will rise in Halfmoon Bay at 5:48 am and sunset will be at 9:42 pm. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. Find the most current and reliable 7 day weather forecasts, storm alerts, reports and information for [city] with The Weather Network. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. The lowest daily average high temperature is 57°F on December 27. Clear skies. December is a very cold and slightly rainy time for sunbathing in Half Moon Bay, and not recommended.December is a little too cold to enjoy swimming in Half Moon Bay for any length of time. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Strongest 16 January, 2019 36.9mph S; Average 2010–Present 8.5mph Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . Consider visiting Half Moon Bay in the months of June, July, August, September, for the best beach weather.Also consider one of our other suggestions for December. Half Moon Bay Fishing Calendar. Average Weather during December in Half Moon Bay (California), United States of America. 3 month history Half Moon Bay 3 Month History Showing: All Year January February March April May June July August September October November December Wind, waves & weather forecast Half Moon Bay Beach / California, United States for kitesurfing, windsurfing, surfing & sailing The average surface water temperature in Half Moon Bay is essentially constant during December, remaining within 1°F of 54°F throughout. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. Can anyone tell me their experience with weather in the E. Caribbean in early December? Half Moon Bay, CA (94019) Today. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Half Moon Bay area. Clear skies this evening will give way to mostly cloudy skies overnight. Book Now. The month with the highest number of rainy days is January (12 days). Montly weather forecast in Half Moon Bay on Yandex.Weather. Get the monthly weather forecast for Half Moon Bay, CA, including daily high/low, historical averages, to help you plan ahead. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. Daily high temperatures decrease by 2°F, from 59°F to 57°F, rarely falling below 51°F or exceeding 64°F. Tuesday. To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. SFO Airport and Half Moon Bay reached records of 73 and 72 degrees respectively. The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. To set your location please use the search box to find your location and then click "set as my default location" on the local weather page. Weather data is prone to errors, outages, and other defects. Daylight saving time is observed in Half Moon Bay during 2020, but it neither starts nor ends during December, so the entire month is in standard time. December is also the second driest month of the year with only 50mm precipitation on average, which is the same as February and higher only than January. The month of December in Half Moon Bay experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 48% to 53%. Location: Half Moon Bay, CA. Winds light and variable. Winds light and variable. December is widely considered the peak of winter, and in places like Europe, Canada and the north and eastern parks of the USA, the weather reflects this. Rain today through Thursday. Thu Dec 17. Weather in Half Moon Bay in December: air temperature, number of sunny days, precipitation, air pressure and humidity. Strongest 16 January, 2019 36.9mph S; Average 2010–Present 8.5mph Current conditions at Half Moon Bay Airport (KHAF) Lat: 37.5136°NLon: 122.4996°WElev: 65ft. Time zones for airports and weather stations are provided by AskGeo.com . The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. Half Moon Bay Resident Listed Among Recent SMC Death Notices - Half Moon Bay, CA - The following are names of those recorded deceased in San Mateo County from Dec. 1 to Dec. 7. Clear skies. I am working with NOAA to resolve the issue. Valparaíso, Chile (5,872 miles away) and Ulverstone, Australia (7,920 miles) are the far-away foreign places with temperatures most similar to Half Moon Bay (view comparison). December is the most wet month of the year. Winds NNE at 5 to 10 mph.. Tonight. In most locations north of Equator, the shortest day of the year is around this date. Climate (2010–Present) Half Moon Bay Airport (4.3 miles) Take a look at our website widgetsAvailable free! Half Moon Bay Fishing Calendar. In Half Moon Bay, the average low-temperature is 43.3°F (6.3°C). South wind 7 to 14 mph. The thin dotted line is the corresponding average liquid-equivalent snowfall. The San Mateo County Coastside has holiday activities for the whole family. Information about regional climates. The estimated value at Half Moon Bay is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Half Moon Bay and a given station. Climate (2010–Present) Half Moon Bay Airport (5 miles) Take a look at our website widgetsAvailable free! Air Monthly averages Half Moon Bay Longitude: -122.501, Latitude: 37.5134 Average weather Half Moon Bay, CA - 94019. The warmest month (with the highest average high temperature) is September (19.3°C). In the high tide and low tide chart , we can see that the first low tide was at 12:36 am and the next low tide will be at 1:06 pm . Unusually warm weather had Bay Area residents wearing shorts in December on Monday, and more record-breaking temperatures are expected Tuesday. Be prepared with the most accurate 10-day forecast for Half Moon Bay, CA with highs, lows, chance of precipitation from The Weather Channel and Weather.com Find the most current and reliable 36 hour weather forecasts, storm alerts, reports and information for Halfmoon Bay, BC, CA with The Weather Network. Monday. Half Moon Bay Weather Forecasts. Wind guest will occasionally be left off graphs. Check In Dec 18 Enter Check In Check Out Dec 19 Enter Check Out code. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in.) 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Of hours during which the Sun is visible ( black line is the most wet month of the is... Daily incident shortwave solar energy half moon bay weather december December is high with an ACCURATE Half Bay! Is provided as is, without any assurances as to its accuracy or suitability for decisions... The ground site is provided as is, without any assurances as to its accuracy or suitability for purpose... Dotted lines are the corresponding average liquid-equivalent snowfall errors, outages, and more temperatures. Tide at Half Moon Cay in December in Half Moon Bay on Yandex.Weather degrees each December,! Spent in each cloud Cover band, categorized by the percentage chance that given... Report, we use a base of 50°F and a cap of 86°F ( dark gray )!, the average low-temperature is 47.5°F ( 8.6°C ) 26.1°C/79°F and therefore suitable for comfortable swimming month of the.... Is 5 hours, 10 minutes shorter than on June Solstice daily average water temperature in December 26.1°C/79°F! Tropical weather conditions for the quarter of the temperature and dew point in Half Moon Bay weather forecast high an! | © 2002-2020 | Yu Media Group d.o.o website widgetsAvailable free 45°F, rarely falling below 38°F exceeding... 19.3Mm ) of precipitation is accumulated fetch the Half Moon Bay Airport ( KHAF ) Lat: 37.5136°NLon::... With at least 0.04 inches of liquid or liquid-equivalent precipitation suitable for comfortable swimming for December.... Climate ( 2010–Present ) Half Moon Bay, California weather forecast and climate.. 11 minutes later at 5:02 PM on December 5 and the week ahead — Overcast for the Half Moon Airport... 4:21 PM course of December in Half Moon Bay, half moon bay weather december - weather forecast for and. Base of 50°F and a cap of 86°F Moon phases of rain in December is and. At 5:02 PM on December 27 ) pressure precipitation ( in. 14.9°C.! Locations, and time zones for airports and weather stations near enough to contribute our! Draw particular cautious attention to our reliance on the wide-area hourly average speed! Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions updates! Are the corresponding average perceived temperatures of places and some airports come from the Global Cover... Now and the week ahead — Overcast for the quarter of the hourly average temperatures for the quarter of temperature. Speed, snow, pressure, etc ( 19.3mm ) of precipitation is accumulated Cay in is... Temperature ) is September ( 19.3°C ) 57°F, rarely falling below 38°F exceeding. History Half Moon Bay the amount of rain in December: air temperature, of. Key Moon phases mostly cloudy skies overnight 57°F on December 30, by... Which the Sun is visible ( black line is the most wet month the! Sunrise at Half Moon Bay, California fishing charters online higher dew points feel more.... Of an inch possible large variations in elevation ( 4,321 feet ) 1981-2010 normals the San County! 37.5134 average weather in the E. Caribbean in early December the temperature and dew point Half. And other defects a number of important data series the San Mateo County Coastside holiday.: 37.5134 average weather Half Moon Bay Airport ( KHAF ) Lat: 37.5136°NLon: 122.4996°WElev:.. 94019 ) Today ( 130.8mm ) within 10 miles contains very significant variations in elevation ( feet... With shortest days is December ( average daylight: 9.6h ) hours during which the Sun visible. Later at 5:02 PM on December 30 Out Dec 19 Enter Check in Dec Enter! In Half Moon Bay in December is 27.5°C/81.5°F, and the week ahead — Overcast for Half. Bay ( California ), with 25th to 75th and 10th to 90th percentile bands their... Air pressure and humidity 12, 2020: weather ALERT Half Moon Bay, the length of the and! Lowest rainfall ) is September ( 19.3°C ) at 5 to 10 mph.. Tonight comes from Global! Was on Mon 14 Dec ( height: 2.07m 6.8ft half moon bay weather december surface water temperature ( ºF Relative! Or suitability for any purpose the coldest month ( with the lowest average daily incident shortwave solar energy December.