December weather forecastCuesta-by-the-Sea, CA
December
Weather in December
The first month of the winter, December, is also a moderate month in Cuesta-by-the-Sea, California, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 59.2°F (15.1°C).Temperature
December, with its high-temperature average of 59.2°F (15.1°C) and a low-temperature average of 48°F (8.9°C), is the coldest month.Humidity
In Cuesta-by-the-Sea, the average relative humidity in December is 66%.Rainfall
In Cuesta-by-the-Sea, California, in December, during 7.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Cuesta-by-the-Sea, during the entire year, the rain falls for 53.7 days and collects up to 8.58" (218mm) of precipitation.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:54 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:01 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 6.4h of sunshine.UV index
The months with the lowest UV index in Cuesta-by-the-Sea are January through April, 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 unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 4 during December translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cuesta-by-the-Sea, CA
- Average high temperature in December: 59.2°F
The warmest month (with the highest average high temperature) is September (76.3°F).
The month with the lowest average high temperature is December (59.2°F).
- Average low temperature in December: 48°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 (47.3°F).
Average pressure in December
Cuesta-by-the-Sea, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June and September (29.91"Hg).
Average wind speed in December
Cuesta-by-the-Sea, CA
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (6mph).
Average humidity in December
Cuesta-by-the-Sea, CA
- Average humidity in December: 66%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are September and October (61%).
Average rainfall in December
Cuesta-by-the-Sea, CA
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is January (1.81").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in December
Cuesta-by-the-Sea, CA
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.7 days).
Average daylight in December /
Average sunshine in December
Cuesta-by-the-Sea, CA
- Average daylight in December: 9h and 48min
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 48min).
- Average sunshine in December: 6h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Cuesta-by-the-Sea, CA
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.1 days).
Average UV index in December
Cuesta-by-the-Sea, CA
- Average UV index in December: 4
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in December
Cuesta-by-the-Sea, CA
- Average cloud cover in December: 26
The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 7).
Average visibility in December
Cuesta-by-the-Sea, 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).
