Measurements:
°C
°F
Sierra Nevada
34°F
SE 7 mph
Feels like: 28°F
Precip: 0%
World Resorts Spain Sierra Nevada Weather December Weather in Sierra Nevada

Sierra Nevada Weather: December

Average Day Temperature: 49.4°F
Average Night Temperature: 37.1°F
Sea Water Temperature: 62.5°F
Number of Sunny Days: 21 days
Sunshine Hours: 9.6 - 9.8 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.6 in

Air Temperature in December, °F

Select Year: 2025 2024 2023

The highest day temperature in December 2025 was 58°F. The lowest night temperature was 22°F. The average values for day and night temperatures during December were 42.5°F и 34.4°F respectivly.

Sierra Nevada Water Sea Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Sierra Nevada was 62.6°F. The maximum and minimum values were 61.4°F and 63.6°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in December are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in December, in

Precipitation total in December for Sierra Nevada is 1.6 in. It makes december one of the least rainy months of the year.

Wind Speed in December, mph

The average wind speed in December is 4.3 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sierra Nevada in December is 7.5 hours.

Best Time to Visit Sierra Nevada
The most sunny months:
July 29 days
August 27 days
June 25 days
The most warm months:
July 86.8 °F
August 86.1 °F
June 76.0 °F
Warmest sea temperature:
August 80.0 °F
July 76.8 °F
September 76.7 °F
The most cold months:
January 46.8 °F
February 47.9 °F
December 49.4 °F
The most rainy months:
April 6 days
March 5 days
September 5 days
The most windy months:
March 6 mph
February 5 mph
April 5 mph

Sierra Nevada on the Weather Map

24 Hours Weather Forecast
Sierra Nevada
Local time: 03:31
10 jan, saturday
0600 32°F
SE
6 mph
0900 32°F
SE
4 mph
1200 42°F
E
3 mph
1500 44°F
E
3 mph
1800 36°F
SE
2 mph
2100 34°F
SE
3 mph
11 jan, sunday
0000 32°F
SE
2 mph
0300 32°F
SE
2 mph