December weather forecast and climate
Stinson Beach, CA

Weather in December

December, the first month of the winter, in Stinson Beach, is still a cool month, with average temperature fluctuating between 46°F (7.8°C) and 55.2°F (12.9°C).

Temperature

The coldest month is December, with an average high-temperature of 55.2°F (12.9°C) and an average low-temperature of 46°F (7.8°C).

Humidity

The average relative humidity in Stinson Beach is 73%.

Rainfall

In December, the rain falls for 10.9 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Stinson Beach, there are 80.3 rainfall days, and 15.98" (406mm) of precipitation is accumulated.

Snowfall

December is the only month when snow falls. The month with the most snowfall days in Stinson Beach is December when snow falls for 0.1 days.

Daylight

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

Sunshine

With an average of 5.6h of sunshine, December has the least sunshine of the year in Stinson Beach, California.

UV index

February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Stinson Beach?

With an average high-temperature of 55.2°F (12.9°C) and an average low-temperature of 46°F (7.8°C), December is the coldest month in Stinson Beach, California.

What is the average humidity in December in Stinson Beach?

In December, the average relative humidity in Stinson Beach is 73%.

How much does it rain in Stinson Beach in December?

In Stinson Beach, during December, the rain falls for 10.9 days and regularly aggregates up to 2.83" (72mm) of precipitation.

What is the snowiest month in Stinson Beach?

The month with the most snowfall days is December when snow falls for 0.1 days.

When does it start snowing in Stinson Beach?

December is the first month it typically snows in Stinson Beach, California. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Stinson Beach?

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

How many hours of daylight does Stinson Beach have in December?

In Stinson Beach, the average length of the day in December is 9.6h.

What is the month with the least sunshine in Stinson Beach?

The month with the least sunshine in Stinson Beach is December, with an average of 5.6h of sunshine.

How many hours of sunshine does Stinson Beach have in December?

The average sunshine in December in Stinson Beach is 5.6h.

What is the month with the lowest UV index in Stinson Beach?

February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Stinson Beach.

What is the UV index reading in December in Stinson Beach?

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in December
Stinson Beach, CA

Average temperature in December - Stinson Beach, CA
  • Average high temperature in December: 55.2°F

The warmest month (with the highest average high temperature) is September (70.9°F).
The month with the lowest average high temperature is December (55.2°F).

  • Average low temperature in December: 46°F

The month with the highest average low temperature is September (56.3°F).
The coldest month (with the lowest average low temperature) is December (46°F).

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Average pressure in December
Stinson Beach, CA

Average pressure in December - Stinson Beach, CA
  • Average pressure in December: 30.1"

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
Stinson Beach, CA

Average wind speed in December - Stinson Beach, CA
  • Average wind speed in December: 6.7mph

The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is November (5.9mph).

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Average humidity in December
Stinson Beach, CA

Average humidity in December - Stinson Beach, CA
  • Average humidity in December: 73%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in December
Stinson Beach, CA

Average rainfall in December - Stinson Beach, CA
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in December
Stinson Beach, CA

Average rainfall days in December - Stinson Beach, CA
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (2.3 days).

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Average snowfall days in December
Stinson Beach, CA

Average snowfall days in December - Stinson Beach, CA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Stinson Beach, CA

Average daylight in December / Average sunshine in December - Stinson Beach, 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: 5.6h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.6h).

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Average sunshine days in December
Stinson Beach, CA

Average sunshine days in December - Stinson Beach, CA
  • Average sunshine days in December: 18.7 days

Months with the most sunshine days are June and July (24.8 days).
The month with the least sunshine days is March (16.6 days).

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Average UV index in December
Stinson Beach, CA

Average UV index in December - Stinson Beach, CA
  • Average UV index in December: 3

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

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Average cloud cover in December
Stinson Beach, CA

Average cloud cover in December - Stinson Beach, CA
  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in December
Stinson Beach, CA

Average visibility in December - Stinson Beach, 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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