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, on average, is the coldest month, registering a high temperature of 57.2°F (14°C) and a low of 46.4°F (8°C).Humidity
In December, the average relative humidity in Seaside, California, is 71%.Rainfall
December is the month with the most rainfall in Seaside. Rain falls for 9.9 days and accumulates 2.4" (61mm) of precipitation.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of December in Seaside, sunrise is at 7:01 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:01 pm PST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year in Seaside, California.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 3 during December translates into the following directions:
Put precautions into practice - Protective measures against sun-induced damage are advised. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What are the coldest months in Seaside?
What are the temperatures in Seaside in December?
What is the average humidity in December in Seaside?
What is the wettest month in Seaside?
How much does it rain in Seaside in December?
What is the month with the shortest days in Seaside?
How many hours of daylight does Seaside have in December?
What time are sunrise and sunset in December in Seaside?
What is the month with the least sunshine in Seaside?
How many hours of sunshine does Seaside have in December?
What is the month with the lowest UV index in Seaside?
What is the UV index reading in December in Seaside?
Average temperature in December
Seaside, CA
- Average high temperature in December: 57.2°F
The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in December: 46.4°F
The months with the highest average low temperature are August and September (55.2°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in December
Seaside, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in December
Seaside, CA
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Seaside, CA
- Average humidity in December: 71%
The months with the highest relative humidity are March and May (76%).
The month with the lowest relative humidity is November (68%).
Average rainfall in December
Seaside, CA
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is December (2.4").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in December
Seaside, CA
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (1.1 days).
Average daylight in December /
Average sunshine in December
Seaside, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h
The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in December
Seaside, CA
- Average sunshine days in December: 20 days
The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in December
Seaside, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Seaside, CA
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Seaside, 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).
Seaside, California, USA
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