Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December is Goleta's coldest month, registering average high temperatures of 60.6°F (15.9°C) and lows of 48.6°F (9.2°C).Humidity
In December, the average relative humidity is 60%.Rainfall
In Goleta, in December, it is raining for 5.7 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 43.7 rainfall days, and 7.68" (195mm) of precipitation is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:48 am and sunset at 4:49 pm. On the last day of December, in Goleta, sunrise is at 7:05 am and sunset at 4:59 pm PST.
Sunshine
The average sunshine in December is 6.8h.UV index
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during December translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Around midday, solar radiation is most harmful; hence, exposure should be limited. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the temperature in December?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Goleta have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Goleta, CA
- Average high temperature in December: 60.6°F
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (60.6°F).
- Average low temperature in December: 48.6°F
The month with the highest average low temperature is August (62.1°F).
The coldest month (with the lowest average low temperature) is February (47.7°F).
Average pressure in December
Goleta, CA
- Average pressure in December: 30.08"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).
Average wind speed in December
Goleta, CA
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in December
Goleta, CA
- Average humidity in December: 60%
The month with the highest relative humidity is March (64%).
The months with the lowest relative humidity are September, October and November (56%).
Average rainfall in December
Goleta, CA
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is January (1.57").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in December
Goleta, CA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.2 days).
Average daylight in December /
Average sunshine in December
Goleta, 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 5min
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).
Average sunshine days in December
Goleta, CA
- Average sunshine days in December: 24.6 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in December
Goleta, CA
- Average UV index in December: 4
The months with the highest UV index are June, 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
Goleta, CA
- Average cloud cover in December: 22
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Goleta, 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).
Goleta, California, USA
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