Measurements:
°C
°F
San Diego
52°F
S 4 mph
Feels like: 50°F
Precip: 0%
World Resorts USA San Diego Weather September Weather in San Diego

San Diego Weather: September

Average Day Temperature: 81.1°F
Average Night Temperature: 69.6°F
Sea Water Temperature: 71.3°F
Number of Sunny Days: 20 days
Sunshine Hours: 11.9 - 12.8 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.1 in

Air Temperature in September, °F

Select Year: 2024 2023 2022

The highest day temperature in September 2024 was 93°F. The lowest night temperature was 61°F. The average values for day and night temperatures during September were 77.9°F и 69.5°F respectivly.

San Diego Water Sea Temperature in September, °F

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for San Diego was 71.3°F. The maximum and minimum values were 66.4°F and 74.4°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 San Diego is 0.1 in. It makes september the least rainy month of the year.

Wind Speed in September, mph

The average wind speed in September is 6.6 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 San Diego in September is 9.5 hours.

Best Time to Visit San Diego
The most sunny months:
July 23 days
August 22 days
June 22 days
The most warm months:
August 82.2 °F
September 81.1 °F
July 79.3 °F
Warmest sea temperature:
August 72.1 °F
September 71.3 °F
July 71.1 °F
The most cold months:
January 64.6 °F
December 64.8 °F
February 64.8 °F
The most rainy months:
March 2 days
February 2 days
January 2 days
The most windy months:
May 7 mph
April 7 mph
March 7 mph

San Diego on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +64
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +44
Los Angeles +62
Maui +74
Miami +84
New York +62
San Diego +52
San Francisco +56
Sarasota +76
Tampa +78
Washington +62
24 Hours Weather Forecast
San Diego
Local time: 06:48
05 nov, tuesday
0900 62°F
S
3 mph
1200 72°F
SE
6 mph
1500 70°F
E
9 mph
1800 64°F
E
6 mph
2100 60°F
NE
3 mph
06 nov, wednesday
0000 58°F
N
3 mph
0300 56°F
N
5 mph
0600 54°F
N
5 mph