Weather in September 2025

Mainz weather in September 2025

The temperatures in Mainz in September are comfortable with low of 12°C and and high up to 22°C.

You can expect about 3 to 8 days of rain in Mainz during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

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

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

Temperatures
Temperatures
22° / 12°
Rainy Days
Rainy Days
3
Snowy Days
Snowy Days
0
Dry Days
Dry Days
27
Rainfall
Rainfall
45
mm
10.3
Sun Hours
10.3
Hrs

Mainz annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 4° / 0° 6 16 9 44 mm
Awful
February 6° / 1° 5 17 6 40 mm
Awful
March 11° / 3° 5 24 2 33 mm
Bad
April 17° / 6° 4 25 1 34 mm
Good
May 20° / 9° 6 25 0 84 mm
Good
June 24° / 13° 5 25 0 74 mm
Perfect
July 26° / 15° 5 26 0 84 mm
Perfect
August 26° / 15° 4 27 0 67 mm
Perfect
September 22° / 12° 3 27 0 45 mm
Good
October 15° / 8° 4 27 0 50 mm
Good
November 10° / 4° 5 23 2 49 mm
Bad
December 6° / 2° 8 18 6 59 mm
Awful
Temperatures in Mainz in September
Rain in Mainz in September

Recommended Hotels in Mainz

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

Weather in Mainz in September - FAQ

What is the average temperature in Mainz in September?
The average temperature in Mainz in September is 12/22° C.
What is the chance of rain in Mainz in September?
On average, there are 3 rainy days in Mainz during September.
Weather wise, is September a good time to visit Mainz?
The weather in Mainz in September is good.
Can it snow in Mainz in September?
On average, there are 0 snowy days in Mainz in September.
More about the weather in Mainz