Weather in Denmark for September 2025
In general, the average temperature in Denmark at the beginning of September is 21.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.7 °C by the end of September.
Denmark in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 54.1 mm.
Temperatures
Rain 🌧️
Denmark in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2 21° | 3 21° | 4  21° | 5 22° | 6 22° | 7  22° |
| 8  23° | 9 22° | 10 21° | 11  20° | 12 19° | 13  17° | 14 18° |
| 15 17° | 16 18° | 17 19° | 18 19° | 19 18° | 20 18° | 21 18° |
| 22 18° | 23 17° | 24 16° | 25 17° | 26 16° | 27  16° | 28 16° |
| 29 15° | 30 14° |
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Temperatures trend during September in Denmark
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 21° /13° | 0.4 mm | 6 | |
| 2 Sept. | Sunny | 21° /12° | 0 mm | 6 | |
| 3 Sept. | Sunny | 21° /14° | 0.1 mm | 5 | |
| 4 Sept. | Partly cloudy | 21° /14° | 0.2 mm | 6 | |
| 5 Sept. | Sunny | 22° /14° | 0 mm | 6 | |
| 6 Sept. | Partly cloudy | 22° /14° | 0 mm | 6 | |
| 7 Sept. | Overcast | 22° /14° | 1 mm | 6 | |
| 8 Sept. | Patchy rain possible | 23° /16° | 3.4 mm | 5 | |
| 9 Sept. | Sunny | 22° /15° | 4.9 mm | 5 | |
| 10 Sept. | Patchy rain possible | 21° /14° | 1.9 mm | 5 | |
| 11 Sept. | Moderate rain at times | 20° /14° | 6.3 mm | 5 | |
| 12 Sept. | Patchy rain possible | 19° /12° | 1 mm | 5 | |
| 13 Sept. | Cloudy | 17° /12° | 1.4 mm | 4 | |
| 14 Sept. | Overcast | 18° /12° | 0 mm | 4 | |
| 15 Sept. | Moderate or heavy rain shower | 17° /12° | 4.2 mm | 4 | |
| 16 Sept. | Patchy rain possible | 18° /13° | 1 mm | 5 | |
| 17 Sept. | Patchy rain possible | 19° /13° | 0.1 mm | 5 | |
| 18 Sept. | Overcast | 19° /13° | 0.6 mm | 5 | |
| 19 Sept. | Cloudy | 18° /11° | 0.4 mm | 5 | |
| 20 Sept. | Overcast | 18° /12° | 0.6 mm | 5 | |
| 21 Sept. | Sunny | 18° /12° | 0.3 mm | 5 | |
| 22 Sept. | Cloudy | 18° /12° | 0.6 mm | 5 | |
| 23 Sept. | Moderate rain at times | 17° /11° | 1.7 mm | 4 | |
| 24 Sept. | Overcast | 16° /11° | 1.3 mm | 4 | |
| 25 Sept. | Overcast | 17° /12° | 1.8 mm | 4 | |
| 26 Sept. | Partly cloudy | 16° /11° | 3.5 mm | 4 | |
| 27 Sept. | Heavy rain at times | 16° /12° | 6 mm | 4 | |
| 28 Sept. | Patchy rain possible | 16° /11° | 3 mm | 4 | |
| 29 Sept. | Moderate or heavy rain shower | 15° /10° | 6.3 mm | 4 | |
| 30 Sept. | Patchy rain possible | 14° /10° | 2.3 mm | 3 | |
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Guide for Denmark in September
In Denmark, September marks the transition from summer to autumn, bringing about noticeable changes in the weather. At the beginning of the month, the weather in Denmark is generally mild and pleasant, with average temperatures ranging from 14° in the daytime to 10° at night.
The early days of September often see lingering warmth from the summer months, with occasional showers and a mix of sun and clouds.
As the month progresses, Denmark experiences a gradual drop in temperatures, particularly towards the end of September. By this time, the average daytime temperatures decrease to around 12°, and the nights become cooler, with temperatures dropping to around 8°.
The weather becomes more unpredictable, with an increased chance of rain and gusty winds as autumn takes hold.
Overall, September in Denmark offers a mix of transitional weather, with the gradual shift from summer to autumn becoming more apparent as the month progresses.
Travelers visiting Denmark during this time should be prepared for varying conditions and may want to pack layers to accommodate the changing temperatures and weather patterns.
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Denmark in September - FAQ
September rainfall patterns in Denmark
UV exposure in Denmark during September
Quick links
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