December weather forecastOxnard, CA
December
Weather in December
The first month of the winter, December, is still a mild month in Oxnard, California, with an average temperature fluctuating between 59.9°F (15.5°C) and 50.5°F (10.3°C).Temperature
As December arrives, Oxnard's weather displays a minor decrease in high-temperatures, transitioning from November's enjoyable 65.3°F (18.5°C) to a moderate 59.9°F (15.5°C). Throughout the month of December, the nighttime temperature dips to an average of 50.5°F (10.3°C).Humidity
The average relative humidity in December is 59%.Rainfall
In December, in Oxnard, the rain falls for 5.3 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. In Oxnard, during the entire year, the rain falls for 46.5 days and collects up to 8.31" (211mm) of precipitation.Ocean temperature
In Oxnard, the average seawater temperature in December is 58.8°F (14.9°C).Note: Beware when you're in 58.8°F (14.9°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December in Oxnard, California, sunrise is at 6:45 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 4:57 pm PST.
Sunshine
In Oxnard, the average sunshine in December is 6.9h.UV index
The months with the lowest UV index in Oxnard are January through April, 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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 4 in December suggests the following recommendations:
Be vigilant - Preventing sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Oxnard, CA
- Average high temperature in December: 59.9°F
The warmest months (with the highest average high temperature) are August and September (73.4°F).
The month with the lowest average high temperature is February (59°F).
- Average low temperature in December: 50.5°F
The month with the highest average low temperature is September (63°F).
The coldest months (with the lowest average low temperature) are February and December (50.5°F).
Average pressure in December
Oxnard, CA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.9"Hg).
Average wind speed in December
Oxnard, CA
- Average wind speed in December: 6.7mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Oxnard, CA
- Average humidity in December: 59%
The month with the highest relative humidity is June (72%).
The month with the lowest relative humidity is November (57%).
Average rainfall in December
Oxnard, CA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is January (1.85").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Oxnard, CA
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is August (1.3 days).
Average sea temperature in December
Oxnard, CA
- Average sea temperature in December: 58.9°F
The best month for swimming (with the highest average sea temperature) is August (64.1°F).
The coldest month (with the lowest average sea temperature) is April (56.7°F).
Average daylight in December /
Average sunshine in December
Oxnard, 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 54min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 6h and 48min).
Average sunshine days in December
Oxnard, CA
- Average sunshine days in December: 24.9 days
The month with the most sunshine days is October (27.2 days).
The month with the least sunshine days is February (21.7 days).
Average UV index in December
Oxnard, CA
- Average UV index in December: 4
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in December
Oxnard, CA
- Average cloud cover in December: 21
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Oxnard, 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).
