Weather in September 2025

California weather in September 2025

The weather in California in September is hot. The average temperatures are between 21°C and 31°C.

There shouldn't be any rainy days in in California during September. Having said that, the days are very hot in September so hanging out outside is more recomanded during the after noons and evening time.

Our weather forecast can give you a great sense of what weather to expect in California in September 2025.

If you’re planning to visit California in the near future, we highly recommend that you review the 14 day weather forecast for California before you arrive.

Temperatures
Temperatures
31° / 21°
Rainy Days
Rainy Days
0
Snowy Days
Snowy Days
0
Dry Days
Dry Days
30
Rainfall
Rainfall
4
mm
11.8
Sun Hours
11.8
Hrs

California annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 21° / 11° 3 28 0 58 mm
Good
February 20° / 11° 2 27 0 56 mm
Good
March 22° / 12° 2 29 0 34 mm
Good
April 24° / 13° 1 29 0 18 mm
Perfect
May 25° / 15° 0 31 0 4 mm
Perfect
June 27° / 17° 0 30 0 1 mm
Perfect
July 30° / 20° 0 31 0 5 mm
Good
August 31° / 21° 0 31 0 3 mm
Good
September 31° / 21° 0 30 0 4 mm
Good
October 27° / 18° 1 30 0 10 mm
Perfect
November 24° / 14° 1 29 0 22 mm
Perfect
December 19° / 11° 3 28 0 66 mm
Good
Temperatures in California in September
Rain in California in September

Recommended Hotels in California

We know that finding the ideal hotel in California can be a hard task...

That’s why we run our special tools and found the best hotels in California. Click on hotel for more details.

Weather in California in September - FAQ

What is the average temperature in California in September?
The average temperature in California in September is 21/31° C.
What is the chance of rain in California in September?
On average, there are 0 rainy days in California during September.
Weather wise, is September a good time to visit California?
The weather in California in September is good.
Can it snow in California in September?
On average, there are 0 snowy days in California in September.
Cities in California

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More about the weather in California