December weather forecastManhattan Beach, CA
December
Weather in December
December, the first month of the winter in Manhattan Beach, is also an enjoyable month, with an average temperature ranging between max 62.8°F (17.1°C) and min 52.7°F (11.5°C).Temperature
The lowest temperatures are recorded in December, with averages reaching a high of 62.8°F (17.1°C) and a low of 52.7°F (11.5°C).Humidity
In Manhattan Beach, the average relative humidity in December is 59%.Rainfall
In Manhattan Beach, in December, during 5.7 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Manhattan Beach, California, during the entire year, the rain falls for 54.5 days and collects up to 7.91" (201mm) of precipitation.Ocean temperature
In Manhattan Beach, the average seawater temperature in December is 60.4°F (15.8°C).Note: For the majority, swimming in 60.4°F (15.8°C) does not offer a pleasant experience. Below 69.8°F (21°C), the difficulty in controlling breathing escalates.
Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:41 am and sunset at 4:44 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:55 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.6h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 4 in December translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Manhattan Beach, CA
- Average high temperature in December: 62.8°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (62.8°F).
- Average low temperature in December: 52.7°F
The months with the highest average low temperature are August and September (64.2°F).
The coldest month (with the lowest average low temperature) is February (52.2°F).
Average pressure in December
Manhattan Beach, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in December
Manhattan Beach, CA
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).
Average humidity in December
Manhattan Beach, CA
- Average humidity in December: 59%
The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (57%).
Average rainfall in December
Manhattan Beach, CA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is January (1.5").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in December
Manhattan Beach, CA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (3 days).
Average sea temperature in December
Manhattan Beach, CA
- Average sea temperature in December: 60.4°F
The best months for swimming (with the highest average sea temperature) are July and August (67.9°F).
The coldest month (with the lowest average sea temperature) is January (58.3°F).
Average daylight in December /
Average sunshine in December
Manhattan Beach, CA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Manhattan Beach, CA
- Average sunshine days in December: 23.5 days
The months with the most sunshine days are January and October (24.9 days).
The month with the least sunshine days is June (19.6 days).
Average UV index in December
Manhattan Beach, CA
- Average UV index in December: 4
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in December
Manhattan Beach, CA
- Average cloud cover in December: 23
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Manhattan Beach, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
