Weather in September 2025

Vallejo weather in September 2025

The temperatures in Vallejo in September are comfortable with low of 15°C and and high up to 28°C.

You can expect up to 3 rainy days in Vallejo during the month of September.

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

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

Temperatures
Temperatures
28° / 15°
Rainy Days
Rainy Days
0
Snowy Days
Snowy Days
0
Dry Days
Dry Days
30
Rainfall
Rainfall
3
mm
11.9
Sun Hours
11.9
Hrs

Vallejo annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 15° / 6° 5 27 0 59 mm
Good
February 16° / 7° 4 24 0 60 mm
Good
March 17° / 7° 5 26 0 58 mm
Good
April 20° / 8° 2 28 0 22 mm
Good
May 22° / 10° 1 30 0 13 mm
Good
June 26° / 13° 0 30 0 5 mm
Perfect
July 27° / 13° 0 31 0 2 mm
Perfect
August 27° / 14° 0 31 0 2 mm
Perfect
September 28° / 15° 0 30 0 3 mm
Perfect
October 24° / 13° 2 29 0 26 mm
Perfect
November 18° / 9° 3 27 0 35 mm
Good
December 14° / 7° 5 26 0 48 mm
Good
Temperatures in Vallejo in September
Rain in Vallejo in September

Recommended Hotels in Vallejo

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

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

Weather in Vallejo in September - FAQ

What is the average temperature in Vallejo in September?
The average temperature in Vallejo in September is 15/28° C.
What is the chance of rain in Vallejo in September?
On average, there are 0 rainy days in Vallejo during September.
Weather wise, is September a good time to visit Vallejo?
The weather in Vallejo in September is perfect.
Can it snow in Vallejo in September?
On average, there are 0 snowy days in Vallejo in September.
More about the weather in Vallejo