December weather forecast
Ocean Beach, CA

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Weather in December

December, the first month of the winter in Ocean Beach, is also an enjoyable month, with an average temperature varying between 63°F (17.2°C) and 53.6°F (12°C).

Temperature

The yearly lowest temperatures occur in February and December, averaging a high-temperature of 63°F (17.2°C).

Humidity

In Ocean Beach, the average relative humidity in December is 63%.

Rainfall

December is the month with the most rainfall. Rain falls for 6.8 days and accumulates 1.81" (46mm) of precipitation.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 6:33 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:53 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 value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 4 transforms into these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Ocean Beach's temperatures tend to hit their minimum during February and December, with an average high-temperature of 63°F (17.2°C).

What are December temperatures?

December temperatures vary between a high-temperature of 63°F (17.2°C) and a low-temperature of 53.6°F (12°C).

What is the average humidity in December?

The average relative humidity in December is 63%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 6.8 days and accumulates 1.81" (46mm) of precipitation.

How much does it rain in December?

In Ocean Beach, in December, it is raining for 6.8 days, with typically 1.81" (46mm) of accumulated precipitation.

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.

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

The average day length in December is 10h and 2min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:33 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:53 pm PST.

What is the month with the least sunshine?

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

How long on average sun shines in December?

In Ocean Beach, the average sunshine duration in December is 6.7h.

What is the month with the lowest UV index?

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

How high is the UV index in December in Ocean Beach?

The average daily maximum UV index in December in Ocean Beach is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ocean Beach, CA

Average temperature in December - Ocean Beach, CA
  • Average high temperature in December: 63°F

The warmest month (with the highest average high temperature) is August (75.6°F).
The months with the lowest average high temperature are February and December (63°F).

  • Average low temperature in December: 53.6°F

The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is February (53.1°F).

Average pressure in December
Ocean Beach, CA

Average pressure in December - Ocean Beach, CA
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).

Average wind speed in December
Ocean Beach, CA

Average wind speed in December - Ocean Beach, CA
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is October (5.5mph).

Average humidity in December
Ocean Beach, CA

Average humidity in December - Ocean Beach, CA
  • Average humidity in December: 63%

The month with the highest relative humidity is June (76%).
The months with the lowest relative humidity are January and November (61%).

Average rainfall in December
Ocean Beach, CA

Average rainfall in December - Ocean Beach, CA
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in December
Ocean Beach, CA

Average rainfall days in December - Ocean Beach, CA
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is June (2.8 days).

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

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in December
Ocean Beach, CA

Average sunshine days in December - Ocean Beach, CA
  • Average sunshine days in December: 21.8 days

The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is February (20.1 days).

Average UV index in December
Ocean Beach, CA

Average UV index in December - Ocean 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
Ocean Beach, CA

Average cloud cover in December - Ocean Beach, CA
  • Average cloud cover in December: 24

The months with the most cloud cover are March, May and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in December
Ocean Beach, CA

Average visibility in December - Ocean 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).

Ocean Beach, California, USA

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