Stinson Beach
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Stinson Beach, CA

The first month of the winter, December, is still a cool month in Stinson Beach, California, with average temperature varying between 55.2°F (12.9°C) and 46°F (7.8°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 December is 73%.

Rainfall

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

Snowfall

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

Daylight

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

Sunshine

December has the least sunshine of the year, with an average of 5.6h of sunshine.

UV index

Months with the lowest UV index are February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 3 in December interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

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.

What is the temperature in December in Stinson Beach?

In Stinson Beach, in December, the average high-temperature is 55.2°F (12.9°C), and the average low-temperature is 46°F (7.8°C).

What is the average humidity in December in Stinson Beach?

In December, the average relative humidity is 73%.

How much does it rain in Stinson Beach in December?

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

When does it start snowing in Stinson Beach?

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

When does it snow the most in Stinson Beach?

December has the most snowfall days of the year in Stinson Beach, California. Snow falls for 0.1 days.

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

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

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

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, California, is 5.6h.

When is 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.

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

The average daily maximum UV index in December in Stinson Beach is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
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).

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%).

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").

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).

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).

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).

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).