Weather in September 2025

Sonderborg weather in September 2025

The temperatures in Sonderborg in September are usually low and can range between 13°C and 17°C.

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

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

Temperatures
Temperatures
17° / 13°
Rainy Days
Rainy Days
6
Snowy Days
Snowy Days
0
Dry Days
Dry Days
24
Rainfall
Rainfall
105
mm
9.0
Sun Hours
9.0
Hrs

Sonderborg annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 3° / 1° 9 12 9 89 mm
Awful
February 4° / 1° 8 11 9 69 mm
Awful
March 6° / 3° 6 21 4 58 mm
Awful
April 10° / 5° 5 24 2 48 mm
Bad
May 14° / 9° 7 24 0 89 mm
Ok
June 18° / 12° 5 25 0 88 mm
Good
July 20° / 15° 7 24 0 114 mm
Ok
August 20° / 15° 6 25 0 114 mm
Good
September 17° / 13° 6 24 0 105 mm
Good
October 13° / 10° 8 23 0 108 mm
Bad
November 9° / 6° 9 20 1 97 mm
Bad
December 5° / 3° 10 15 7 95 mm
Awful
Temperatures in Sonderborg in September
Rain in Sonderborg in September

Weather in Sonderborg in September - FAQ

What is the average temperature in Sonderborg in September?
The average temperature in Sonderborg in September is 13/17° C.
What is the chance of rain in Sonderborg in September?
On average, there are 6 rainy days in Sonderborg during September.
Weather wise, is September a good time to visit Sonderborg?
The weather in Sonderborg in September is good.
Can it snow in Sonderborg in September?
On average, there are 0 snowy days in Sonderborg in September.
More about the weather in Sonderborg