The temperatures in Copenhagen in September are usually low and can range between 14°C and 17°C.
You can expect about 3 to 8 days of rain in Copenhagen 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 Copenhagen in September 2025.
If you’re planning to visit Copenhagen in the near future, we highly recommend that you review the 14 day weather forecast for Copenhagen before you arrive.
Temperatures
17° / 14°
Rainy Days
3
Snowy Days
0
Dry Days
27
Rainfall
39
mm
Sun Hours
9.4
Hrs
