Measurements:
°C
°F
Sierra Nevada
34°F
SE 8 mph
Feels like: 26°F
Precip: 0%
World Resorts Spain Sierra Nevada Weather September Weather in Sierra Nevada

Sierra Nevada Weather: September

Average Day Temperature: 74.8°F
Average Night Temperature: 59.4°F
Sea Water Temperature: 76.7°F
Number of Sunny Days: 23 days
Sunshine Hours: 11.8 - 13.0 hours
Number of Rainy Days: 5 days
Precipitation Totals: 3.1 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 85°F. The lowest night temperature was 49°F. The average values for day and night temperatures during September were 75.7°F и 58.6°F respectivly.

Sierra Nevada Water Sea Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Sierra Nevada was 76.6°F. The maximum and minimum values were 72.8°F and 80.8°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in September, in

Precipitation total in September for Sierra Nevada is 3.1 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 4.0 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 September is 10.1 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 49.9 °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: 07:00
05 dec, friday
0900 36°F
SE
8 mph
1200 46°F
SE
7 mph
1500 48°F
SE
9 mph
1800 44°F
SE
8 mph
2100 42°F
SE
6 mph
06 dec, saturday
0000 42°F
SE
6 mph
0300 42°F
S
6 mph
0600 40°F
S
6 mph