December weather forecastRedondo Beach, CA
December
Weather in December
The first month of the winter, December, is still a comfortable month in Redondo Beach, California, with an average temperature fluctuating between 52.7°F (11.5°C) and 62.8°F (17.1°C).Temperature
December proves to be the coldest month, recording an average maximum temperature of 62.8°F (17.1°C) and a minimum temperature of 52.7°F (11.5°C).Humidity
The average relative humidity in December is 59%.Rainfall
In Redondo Beach, in December, during 5.7 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Redondo 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 Redondo Beach, the average seawater temperature in December is 60.4°F (15.8°C).Note: In water with a temperature of 60.4°F (15.8°C), most individuals do not find swimming enjoyable. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), breathing control becomes more difficult.
Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.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 6:58 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 of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 4 in December translates into these instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Redondo 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
Redondo 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
Redondo 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
Redondo 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
Redondo 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
Redondo 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
Redondo 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
Redondo 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
Redondo 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
Redondo 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
Redondo 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
Redondo 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).
