December weather forecast
Oceano, CA

Weather in December

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

Temperature

The coldest month is December, with an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 46.8°F (8.2°C).

Humidity

In December, the average relative humidity is 63%.

Rainfall

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

Daylight

With an average of 9h and 50min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:52 am and sunset at 4:50 pm. On the last day of December, in Oceano, sunrise is at 7:10 am and sunset at 5:00 pm PST.

Sunshine

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

UV index

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Oceano. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 4 translate into the following recommendations:
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.
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FAQ

What is the coldest month in Oceano?

With an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 46.8°F (8.2°C), December is the coldest month.

What is the temperature in December in Oceano?

In Oceano, California, 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?

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

How many days does it rain in December in Oceano?

In Oceano, 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?

The month with the shortest days in Oceano is December, with an average of 9h and 50min of daylight.

How many hours of daylight does Oceano have in December?

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

What time are sunrise and sunset in December in Oceano?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 4:50 pm. On the last day of the month, in Oceano, California, sunrise is at 7:10 am and sunset at 5:00 pm PST.

What is the month with the least sunshine in Oceano?

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

How long on average sun shines in December in Oceano?

In Oceano, the average sunshine duration in December is 6.5h.

When is the lowest UV index in Oceano?

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

What is the UV index intensity in December in Oceano?

The average daily maximum UV index in December in Oceano is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Oceano, CA

Average temperature in December - Oceano, 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, CA

Average pressure in December - Oceano, 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, CA

Average wind speed in December - Oceano, 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, CA

Average humidity in December - Oceano, 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, CA

Average rainfall in December - Oceano, 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, CA

Average rainfall days in December - Oceano, 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, CA

Average daylight in December / Average sunshine in December - Oceano, CA
  • Average daylight in December: 9h and 50min

The month with the longest days is June (Average daylight: 14h and 29min).
The month with the shortest days is December (Average daylight: 9h and 50min).

  • Average sunshine in December: 6h and 30min

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, CA

Average sunshine days in December - Oceano, 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, CA

Average UV index in December - Oceano, 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, CA

Average cloud cover in December - Oceano, 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, CA

Average visibility in December - Oceano, 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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