December weather forecast
Buellton, CA

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Weather in December

December, the first month of the winter in Buellton, is also an enjoyable month, with an average temperature varying between 61.2°F (16.2°C) and 48.6°F (9.2°C).

Temperature

December is the month that records the lowest temperatures, with averages ranging from a high of 61.2°F (16.2°C) to a low of 48.6°F (9.2°C).

Humidity

The average relative humidity in December in Buellton is 62%.

Rainfall

In Buellton, during December, the rain falls for 5 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Buellton, during the entire year, the rain falls for 37.7 days and collects up to 5.98" (152mm) of precipitation.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year in Buellton.
On the first day of December, sunrise is at 6:50 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:00 pm PST.

Sunshine

In December, the average sunshine in Buellton, California, is 6.7h.

UV index

The month with the lowest UV index in Buellton is 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 UV radiation for the average person.
Note: In December, the maximum UV index of 3 suggests these recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What month is the coldest in Buellton?

The coldest month in Buellton is December, with an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 48.6°F (9.2°C).

What is the average December temperature in Buellton?

The high-temperature, in December, in Buellton, is 61.2°F (16.2°C), while the low-temperature averages to 48.6°F (9.2°C).

What is the average humidity in December in Buellton?

In Buellton, California, the average relative humidity in December is 62%.

How many days does it rain in December in Buellton?

In Buellton, California, during December, the rain falls for 5 days and regularly aggregates up to 0.94" (24mm) of precipitation.

What is the month with the shortest days in Buellton?

December has the shortest days of the year in Buellton, California, with an average of 9h and 54min of daylight.

What is the average length of the day in December in Buellton?

In December, the average day length in Buellton, California, is 9h and 53min.

What time are sunrise and sunset in December in Buellton?

In December, on the first day of the month, sunrise is at 6:50 am and sunset at 4:50 pm. On the last day of the month, in Buellton, California, sunrise is at 7:07 am and sunset at 5:00 pm PST.

How many hours of sunshine does Buellton have in December?

In Buellton, California, the average sunshine duration in December is 6.7h.

What is the month with the lowest UV index in Buellton?

December is the month with the lowest UV index in Buellton, California, with an average maximum UV index of 3.

What is the UV index reading in December in Buellton?

In Buellton, California, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Buellton, CA

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

The warmest month (with the highest average high temperature) is August (78.8°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in December: 48.6°F

The month with the highest average low temperature is September (61.2°F).
The coldest month (with the lowest average low temperature) is February (47.8°F).

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Average pressure in December
Buellton, CA

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

The month with the highest atmospheric pressure is January (30.11"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
Buellton, CA

Average wind speed in December - Buellton, CA
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is May (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in December
Buellton, CA

Average humidity in December - Buellton, CA
  • Average humidity in December: 62%

The month with the highest relative humidity is March (67%).
The months with the lowest relative humidity are October and November (58%).

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Average rainfall in December
Buellton, CA

Average rainfall in December - Buellton, CA
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is January (1.38").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Buellton, CA

Average rainfall days in December - Buellton, CA
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is March (6.2 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
Buellton, CA

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 6h and 4min

The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

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Average sunshine days in December
Buellton, CA

Average sunshine days in December - Buellton, CA
  • Average sunshine days in December: 25.7 days

The month with the most sunshine days is August (29 days).
The month with the least sunshine days is February (22.3 days).

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Average UV index in December
Buellton, CA

Average UV index in December - Buellton, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Buellton, CA

Average cloud cover in December - Buellton, CA
  • Average cloud cover in December: 23

The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in December
Buellton, CA

Average visibility in December - Buellton, 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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Buellton, California, USA

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