December weather forecastMarina del Rey, CA
December
Weather in December
December, the first month of the winter in Marina del Rey, is still a comfortable month, with an average temperature fluctuating between 50.7°F (10.4°C) and 63.9°F (17.7°C).Temperature
December tends to be the coldest month, with temperatures averaging a daily high of 63.9°F (17.7°C) and a low of 50.7°F (10.4°C).Humidity
In Marina del Rey, the average relative humidity in December is 55%.Rainfall
In Marina del Rey, in December, it is raining for 5.2 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, in Marina del Rey, California, there are 48.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.Ocean temperature
In Marina del Rey, the average seawater temperature in December is 60.4°F (15.8°C).Note: Most people do not find pleasure in swimming when the water temperature is 60.4°F (15.8°C). Breathing becomes increasingly difficult to manage as the water temperature drops from 69.8°F (21°C) to 59°F (15°C).
Daylight
The month with the shortest days in Marina del Rey, California, is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 6:41 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:55 pm PST.
Sunshine
The months with the least sunshine are February and December, with an average of 6.6h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 4 leads to the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Marina del Rey, CA
- Average high temperature in December: 63.9°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63.9°F).
- Average low temperature in December: 50.7°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).
Average pressure in December
Marina del Rey, CA
- Average pressure in December: 30.08"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
Marina del Rey, CA
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity in December
Marina del Rey, CA
- Average humidity in December: 55%
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (52%).
Average rainfall in December
Marina del Rey, CA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is January (1.54").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in December
Marina del Rey, CA
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (1.8 days).
Average sea temperature in December
Marina del Rey, 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
Marina del Rey, 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 months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).
Average sunshine days in December
Marina del Rey, CA
- Average sunshine days in December: 24.1 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is February (21.8 days).
Average UV index in December
Marina del Rey, CA
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in December
Marina del Rey, 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 8).
Average visibility in December
Marina del Rey, 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).
