Weather in September 2025

Aargau weather in September 2025

°C °F

The average weather in Aargau in September

The temperatures in Aargau in September are quite cold with temperatures between 8°C and 20°C, warm clothes are a must.

You can expect about 3 to 8 days of rain in Aargau 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 Aargau in September 2025.

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

Temperatures
20° / 8°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
109
mm
Sun Hours
10.8
Hrs

Explore the weather in Aargau in other months

Aargau annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 4° / -4° 9 10 12 135 mm
Awful
February 5° / -4° 8 9 12 106 mm
Awful
March 10° / -1° 7 17 7 101 mm
Awful
April 15° / 2° 7 21 2 110 mm
Bad
May 18° / 5° 11 19 0 213 mm
Ok
June 22° / 9° 12 18 0 221 mm
Ok
July 24° / 11° 10 21 0 216 mm
Good
August 24° / 11° 9 22 0 180 mm
Good
September 20° / 8° 5 25 0 109 mm
Good
October 15° / 4° 6 24 0 120 mm
Good
November 9° / 1° 7 18 5 122 mm
Awful
December 5° / -3° 10 12 10 151 mm
Awful

Weather in Aargau in September - FAQ

What is the average temperature in Aargau in September?
The average temperature in Aargau in September is 8/20° C.
What is the chance of rain in Aargau in September?
On average, there are 5 rainy days in Aargau during September.
Weather wise, is September a good time to visit Aargau?
The weather in Aargau in September is good.
Can it snow in Aargau in September?
On average, there are 0 snowy days in Aargau in September.
Cities in Aargau

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