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
Santa Maria's coldest temperatures are experienced in December, with average high temperatures of 61.9°F (16.6°C) and lows of 47.7°F (8.7°C).Humidity
In December, the average relative humidity is 62%.Rainfall
In December, the rain falls for 5.7 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 43.9 rainfall days, and 6.93" (176mm) of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:51 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:09 am and sunset at 5:00 pm PST.
Sunshine
In Santa Maria, the average sunshine in December is 6.6h.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 health risk from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 4 in December leads to these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What are the temperatures in December?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days in Santa Maria?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Santa Maria, CA
- Average high temperature in December: 61.9°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (61.9°F).
- Average low temperature in December: 47.7°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 (46.6°F).
Average pressure in December
Santa Maria, 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).
Average wind speed in December
Santa Maria, CA
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are April and May (7.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in December
Santa Maria, CA
- Average humidity in December: 62%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in December
Santa Maria, CA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is March (1.5").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in December
Santa Maria, CA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is March (7.9 days).
The months with the least rainy days are June and August (0.8 days).
Average daylight in December /
Average sunshine in December
Santa Maria, 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 54min).
- Average sunshine in December: 6h and 4min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in December
Santa Maria, CA
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in December
Santa Maria, CA
- Average UV index in December: 4
The months with the highest UV index are June, July and August (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
Santa Maria, CA
- Average cloud cover in December: 24
The month with the most cloud cover is March (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
Santa Maria, 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).
Santa Maria, California, USA
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