December weather forecast
Oceano Beach, CA

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Weather in December

The first month of the winter, December, is also an enjoyable month in Oceano Beach, California, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 46.8°F (8.2°C).

Temperature

December is the month when Oceano Beach experiences its coldest temperatures, averaging a high of 61.2°F (16.2°C) and a low of 46.8°F (8.2°C).

Humidity

The average relative humidity in December in Oceano Beach is 63%.

Rainfall

In Oceano Beach, during December, the rain falls for 6.4 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Oceano Beach, during the entire year, the rain falls for 47.6 days and collects up to 6.93" (176mm) of precipitation.

Daylight

December has the shortest days of the year in Oceano Beach, California, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 6:53 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:10 am and sunset at 5:01 pm PST.

Sunshine

The months with the least sunshine are February and December, with an average of 6.5h 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 medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in December interprets into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What part of the year is the coldest in Oceano Beach?

December, with an average high of 61.2°F (16.2°C) and a low of 46.8°F (8.2°C), signifies the coldest month of the year.

What is the temperature in December in Oceano Beach?

In Oceano Beach, in December, the average high-temperature is 61.2°F (16.2°C), and the average low-temperature is 46.8°F (8.2°C).

What is the average humidity in December in Oceano Beach?

The average relative humidity in December in Oceano Beach, California, is 63%.

How much does it rain in Oceano Beach in December?

In Oceano Beach, California, in December, during 6.4 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

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

The month with the shortest days is December, with an average of 9h and 48min of daylight.

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

The average day length in December is 9h and 50min.

When are sunrise and sunset in December in Oceano Beach?

On the first day of December in Oceano Beach, sunrise is at 6:53 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:01 pm PST.

What are the months with the least sunshine in Oceano Beach?

February and December, with an average of 6.5h of sunshine, are months with the least sunshine in Oceano Beach, California.

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

The average sunshine duration in December is 6.5h.

What are the months with the lowest UV index in Oceano Beach?

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

What is the UV index intensity in December in Oceano Beach?

In Oceano Beach, the average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Oceano Beach, CA

Average temperature in December - Oceano Beach, CA
  • Average high temperature in December: 61.2°F

The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in December: 46.8°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in December
Oceano Beach, CA

Average pressure in December - Oceano Beach, CA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

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Average wind speed in December
Oceano Beach, CA

Average wind speed in December - Oceano Beach, CA
  • Average wind speed in December: 6.5mph

The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Oceano Beach, CA

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

The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).

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Average rainfall in December
Oceano Beach, CA

Average rainfall in December - Oceano Beach, CA
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in December
Oceano Beach, CA

Average rainfall days in December - Oceano Beach, CA
  • Average rainfall days in December: 6.4 days

The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).

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

Average daylight in December / Average sunshine in December - Oceano Beach, CA
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 6h and 3min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).

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Average sunshine days in December
Oceano Beach, CA

Average sunshine days in December - Oceano Beach, CA
  • Average sunshine days in December: 24 days

The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).

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Average UV index in December
Oceano Beach, CA

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

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

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Average cloud cover in December
Oceano Beach, CA

Average cloud cover in December - Oceano Beach, CA
  • Average cloud cover in December: 25

The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in December
Oceano Beach, CA

Average visibility in December - Oceano 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).

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Oceano Beach, California, USA

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