Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December, marked by an average high-temperature of 55.6°F (13.1°C) and a low-temperature of 45°F (7.2°C), is the coldest month.Humidity
In December, the average relative humidity is 72%.Rainfall
In San Pablo, in December, it is raining for 9.2 days, with typically 0.94" (24mm) of accumulated precipitation. In San Pablo, during the entire year, the rain falls for 64.5 days and collects up to 5.98" (152mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:00 pm PST.
Sunshine
With an average of 5.7h of sunshine, December has the least sunshine of the year in San Pablo.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in San Pablo. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, the UV index of 3 transforms into the following advice:
Undertake protective steps - Preventing sun damage is advised. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does San Pablo have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
San Pablo, CA
- Average high temperature in December: 55.6°F
The warmest month (with the highest average high temperature) is September (75.7°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in December: 45°F
The month with the highest average low temperature is September (56.5°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).
Average pressure in December
San Pablo, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in December
San Pablo, CA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is May (7.5mph).
The calmest month (with the lowest average wind speed) is November (5.1mph).
Average humidity in December
San Pablo, CA
- Average humidity in December: 72%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (65%).
Average rainfall in December
San Pablo, CA
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is February (1.38").
The driest months (with the least rainfall) are June, July, August and September (0.08").
Average rainfall days in December
San Pablo, CA
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is June (2 days).
Average daylight in December /
Average sunshine in December
San Pablo, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
San Pablo, CA
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (18.4 days).
Average UV index in December
San Pablo, CA
- Average UV index in December: 3
The months with the highest UV index are April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
San Pablo, CA
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in December
San Pablo, 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).
San Pablo, California, USA
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