December weather forecastBluewater, CA
December
Weather in December
December, the first month of the winter in Bluewater, is still a comfortable month, with an average temperature fluctuating between 61.2°F (16.2°C) and 47.1°F (8.4°C).Temperature
Bluewater's December weather reaches an average high of 61.2°F (16.2°C) and an average low of 47.1°F (8.4°C), making it the coldest month.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 39%.Rainfall
In December, in Bluewater, the rain falls for 3.6 days. Throughout December, 0.35" (9mm) of precipitation is accumulated. In Bluewater, during the entire year, the rain falls for 39.4 days and collects up to 3.9" (99mm) of precipitation.Daylight
The month with the shortest days in Bluewater is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:25 am and sunset at 4:27 pm. On the last day of December, sunrise is at 6:42 am and sunset at 4:38 pm PST.
Sunshine
With an average of 7h of sunshine, December has the least sunshine of the year.UV index
With an average maximum UV index of 3, December is the month 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 ordinary individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bluewater, CA
- Average high temperature in December: 61.2°F
The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in December: 47.1°F
The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is December (47.1°F).
Average pressure in December
Bluewater, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).
Average wind speed in December
Bluewater, CA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).
Average humidity in December
Bluewater, CA
- Average humidity in December: 39%
The months with the highest relative humidity are January and December (39%).
The month with the lowest relative humidity is June (15%).
Average rainfall in December
Bluewater, CA
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are May and June (0.04").
Average rainfall days in December
Bluewater, CA
- Average rainfall days in December: 3.6 days
The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is May (1.2 days).
Average daylight in December /
Average sunshine in December
Bluewater, CA
- Average daylight in December: 9h and 54min
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: 7h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Bluewater, CA
- Average sunshine days in December: 26.8 days
The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (20.2 days).
Average UV index in December
Bluewater, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Bluewater, CA
- Average cloud cover in December: 19
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Bluewater, 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).





