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Denmark weather in September 2025
Expect 17°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Denmark in September. Check more long-term weather averages for Denmark in September before you book your next holiday to Denmark in 2025/2026.
- 17°C max day temperature
17 - 5 hours of sunshine per day
- 14 days with some rainfall
14 - 10°C min night temperature
10 - 13 hours of daylight per day
13 - No heat & humidity
0 - 62 mm of monthly rainfall
62 - 3 (Moderate) UV index
3 - 15°C sea temperature
15
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The September weather guide for Denmark (Copenhagen) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Denmark destinations
Below are average maximum temperatures at popular countries, regions and places in Denmark in September. Select a holiday destination to see more weather parameters.
All Denmark destinations
- Aalborg
- Arhus
- Billund
- Copenhagen
- Esbjerg
- Holstebro
- Nykobing Falster
- Odense
- Ronne, Bornholm
- Sonderborg
Metric (°C / mm) | Imperial (°F / inches)
More about Denmark
How warm is it in Denmark in September?
Daytime temperatures usually reach 17°C in Copenhagen, Denmark in September, falling to 10°C at night.
How sunny is it in Denmark in September?
There are normally 5 hours of bright sunshine each day in Copenhagen, Denmark in September - that's 39% of daylight hours.
How warm is the sea around Denmark in September?
The average sea temperature around Copenhagen, Denmark in September is 15°C.
Does it rain in Denmark in September?
There are usually 14 days with some rain in Copenhagen, Denmark in September and the average monthly rainfall is 62mm.
Denmark September sunrise & sunset times
Browse the sunrise and sunset times for Denmark in September 2025. Select a month to view Denmark sunrise and sunset times for the next 12 months. The Denmark sunrise and sunset times shown below are for Copenhagen.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st September 2025 | 05:15 | 19:03 |
| Monday, 15th September 2025 | 05:42 | 18:27 |
| Tuesday, 30th September 2025 | 06:11 | 17:47 |
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