Weather in September 2025

Heilbronn weather in September 2025

°C °F

The average weather in Heilbronn in September

The temperatures in Heilbronn in September are comfortable with low of 11°C and and high up to 21°C.

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

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

Temperatures
21° / 11°
Rainy Days
4
Snowy Days
0
Dry Days
26
Rainfall
54
mm
Sun Hours
10.5
Hrs

Explore the weather in Heilbronn in other months

Heilbronn annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 4° / -1° 6 14 11 74 mm
Awful
February 6° / 0° 6 14 9 68 mm
Awful
March 11° / 3° 6 21 4 55 mm
Bad
April 16° / 6° 5 24 1 48 mm
Good
May 19° / 8° 8 23 0 115 mm
Ok
June 23° / 12° 6 24 0 102 mm
Perfect
July 25° / 14° 5 26 0 105 mm
Perfect
August 25° / 15° 5 26 0 76 mm
Perfect
September 21° / 11° 4 26 0 54 mm
Good
October 15° / 7° 5 26 0 57 mm
Good
November 10° / 4° 6 21 3 70 mm
Bad
December 6° / 1° 9 15 7 89 mm
Awful

Weather in Heilbronn in September - FAQ

What is the average temperature in Heilbronn in September?
The average temperature in Heilbronn in September is 11/21° C.
What is the chance of rain in Heilbronn in September?
On average, there are 4 rainy days in Heilbronn during September.
Weather wise, is September a good time to visit Heilbronn?
The weather in Heilbronn in September is good.
Can it snow in Heilbronn in September?
On average, there are 0 snowy days in Heilbronn in September.
More about the weather in Heilbronn