December weather forecast and climate
Sobrante, CA

Weather in December

December, the first month of the winter, in Sobrante, is still a mild month, with average temperature ranging between max 55.6°F (13.1°C) and min 45°F (7.2°C).

Temperature

The coldest month is December, with an average high-temperature of 55.6°F (13.1°C) and an average low-temperature of 45°F (7.2°C).

Humidity

The average relative humidity in December is 72%.

Rainfall

In Sobrante, during December, the rain falls for 9.2 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 64.5 rainfall days, and 5.98" (152mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 9.6h of daylight.

Sunshine

December has the least sunshine of the year in Sobrante, with an average of 5.7h of sunshine.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the coldest month in Sobrante?

December is the coldest month in Sobrante, California, with an average high-temperature of 55.6°F (13.1°C) and an average low-temperature of 45°F (7.2°C).

What is the temperature in December in Sobrante?

In December, in Sobrante, California, the average high-temperature is 55.6°F (13.1°C), and the average low-temperature is 45°F (7.2°C).

What is the average humidity in December in Sobrante?

In Sobrante, the average relative humidity in December is 72%.

How many days does it rain in December in Sobrante?

In December, in Sobrante, the rain falls for 9.2 days. Throughout December, 0.94" (24mm) of precipitation is accumulated.

What is the month with the shortest days in Sobrante?

December has the shortest days of the year in Sobrante, California, with an average of 9.6h of daylight.

What is the average length of the day in December in Sobrante?

The average length of the day in December in Sobrante, California, is 9.6h.

What is the month with the least sunshine in Sobrante?

December has the least sunshine of the year, with an average of 5.7h of sunshine.

How long on average sun shines in December in Sobrante?

In Sobrante, the average sunshine in December is 5.7h.

What is the month with the lowest UV index in Sobrante?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Sobrante, California.

What is the UV index reading in December in Sobrante?

In Sobrante, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in December
Sobrante, CA

Average temperature in December - Sobrante, 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).

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Average pressure in December
Sobrante, CA

Average pressure in December - Sobrante, CA
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in December
Sobrante, CA

Average wind speed in December - Sobrante, 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).

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Average humidity in December
Sobrante, CA

Average humidity in December - Sobrante, 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%).

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Average rainfall in December
Sobrante, CA

Average rainfall in December - Sobrante, 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").

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Average rainfall days in December
Sobrante, CA

Average rainfall days in December - Sobrante, 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).

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Average daylight in December /
Average sunshine in December
Sobrante, CA

Average daylight in December / Average sunshine in December - Sobrante, CA
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 5.7h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in December
Sobrante, CA

Average sunshine days in December - Sobrante, 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).

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Average UV index in December
Sobrante, CA

Average UV index in December - Sobrante, CA
  • Average UV index in December: 3

Months with the highest UV index are April, May, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in December
Sobrante, CA

Average cloud cover in December - Sobrante, 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).

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Average visibility in December
Sobrante, CA

Average visibility in December - Sobrante, CA
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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