December weather forecast
Sunset Beach, CA

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Weather in December

The first month of the winter, December, is still a comfortable month in Sunset Beach, California, with an average temperature varying between 62.8°F (17.1°C) and 53.4°F (11.9°C).

Temperature

December is the coldest month of the year, registering average temperatures as high as 62.8°F (17.1°C) and as low as 53.4°F (11.9°C).

Humidity

The average relative humidity in December is 59%.

Rainfall

December is the month with the most rainfall in Sunset Beach. Rain falls for 6.6 days and accumulates 1.77" (45mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 6:39 am and sunset at 4:43 pm. On the last day of December, in Sunset Beach, sunrise is at 6:56 am and sunset at 4:54 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 6.7h of sunshine.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 4 in December translates into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What time of the year is the coldest?

Sunset Beach's December weather, marked by an average high temperature of 62.8°F (17.1°C) and an average low temperature of 53.4°F (11.9°C), is the coldest in the year.

What is the usual temperature for Sunset Beach in December?

Sunset Beach in December has an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 53.4°F (11.9°C).

What is the average humidity in December?

The average relative humidity in December in Sunset Beach is 59%.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 6.6 days and accumulates 1.77" (45mm) of precipitation.

How much does it rain in December?

In Sunset Beach, in December, during 6.6 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

What is the month with the shortest days?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Sunset Beach.

What is the average length of the day in December in Sunset Beach?

In Sunset Beach, the average day length in December is 9h and 58min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:39 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:54 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6.7h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 6.7h.

What are the months with the lowest UV index?

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

What is the UV index reading in December?

In December, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sunset Beach, CA

Average temperature in December - Sunset Beach, CA
  • Average high temperature in December: 62.8°F

The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in December: 53.4°F

The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is February (52.7°F).

Average pressure in December
Sunset Beach, CA

Average pressure in December - Sunset Beach, CA
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).

Average wind speed in December
Sunset Beach, CA

Average wind speed in December - Sunset Beach, CA
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.3mph).

Average humidity in December
Sunset Beach, CA

Average humidity in December - Sunset Beach, CA
  • Average humidity in December: 59%

The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (57%).

Average rainfall in December
Sunset Beach, CA

Average rainfall in December - Sunset Beach, CA
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in December
Sunset Beach, CA

Average rainfall days in December - Sunset Beach, CA
  • Average rainfall days in December: 6.6 days

The month with the highest number of rainy days is March (8.1 days).
The months with the least rainy days are June and August (2.3 days).

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

Average daylight in December / Average sunshine in December - Sunset Beach, CA
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in December
Sunset Beach, CA

Average sunshine days in December - Sunset Beach, CA
  • Average sunshine days in December: 22.7 days

The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (19.3 days).

Average UV index in December
Sunset Beach, CA

Average UV index in December - Sunset Beach, CA
  • Average UV index in December: 4

The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

Average cloud cover in December
Sunset Beach, CA

Average cloud cover in December - Sunset Beach, CA
  • Average cloud cover in December: 23

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in December
Sunset Beach, CA

Average visibility in December - Sunset Beach, 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).

Sunset Beach, California, USA

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