Weather in Copenhagen for September 2026
Until now, September 2026 in Copenhagen is slightly cooler than the historical average by 1.2 °C.
The forecast for the next days in Copenhagen predicts temperatures to be around 18 °C, close to the historical average.
In general, the average temperature in Copenhagen at the beginning of September is 20.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 19 °C by the end of September.
Copenhagen experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 56.1 mm.
Temperatures
Rain 🌧️
Copenhagen Weather September
Temperatures trend during September in Copenhagen
September weather in Copenhagen day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 21° /13° | 0.7 mm | 5 | |
| 2 Sept. | Sunny | 20° /13° | 0.6 mm | 5 | |
| 3 Sept. | Sunny | 20° /14° | 0.8 mm | 4 | |
| 4 Sept. |  Partly cloudy | 21° /15° | 1.1 mm | 5 | |
| 5 Sept. | Sunny | 21° /14° | 1 mm | 5 | |
| 6 Sept. | Partly cloudy | 21° /14° | 0 mm | 5 | |
| 7 Sept. |  Overcast | 21° /14° | 0.7 mm | 5 | |
| 8 Sept. |  Patchy rain possible | 22° /15° | 2.9 mm | 4 | |
| 9 Sept. | Patchy rain possible | 21° /15° | 3.9 mm | 4 | |
| 10 Sept. | Patchy rain possible | 20° /14° | 1.6 mm | 5 | |
| 11 Sept. | Light rain shower | 20° /14° | 4.5 mm | 4 | |
| 12 Sept. | Patchy rain possible | 19° /13° | 1.5 mm | 4 | |
| 13 Sept. |  Cloudy | 18° /13° | 2.7 mm | 3 | |
| 14 Sept. | Overcast | 17° /12° | 2.1 mm | 4 | |
| 15 Sept. | Patchy rain possible | 18° /12° | 4.9 mm | 4 | |
| 16 Sept. | Patchy rain possible | 18° /13° | 4.2 mm | 4 | |
| 17 Sept. | Patchy rain possible | 18° /12° | 0.4 mm | 4 | |
| 18 Sept. | Patchy rain possible | 19° /13° | 0.9 mm | 4 | |
| 19 Sept. | Patchy rain possible | 18° /12° | 0.3 mm | 4 | |
| 20 Sept. | Patchy rain possible | 17° /13° | 1.6 mm | 2.6 | |
| 21 Sept. | Patchy rain possible | 16° /12° | 0.3 mm | 2.4 | |
| 22 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 23 Sept. | Overcast | 17° /11° | 0 mm | 4 | |
| 24 Sept. | Sunny | 16° /12° | 0.4 mm | 5 | |
| 25 Sept. | Sunny | 18° /12° | 0 mm | 5 | |
| 26 Sept. | Sunny | 20° /11° | 0 mm | 5 | |
| 27 Sept. | Sunny | 20° /12° | 0 mm | 5 | |
| 28 Sept. | Cloudy | 20° /13° | 0 mm | 6 | |
| 29 Sept. | Overcast | 20° /13° | 0 mm | 6 | |
| 30 Sept. | Partly cloudy | 19° /14° | 0 mm | 5 | |
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Guide for Copenhagen in September
In September, Copenhagen, Denmark experiences a transition from the late summer to early autumn, with gradually decreasing temperatures and increasing chances of rainfall.
At the beginning of the month, the weather in Copenhagen is generally mild, with average temperatures around 16° and occasional sunny days. However, as the month progresses, the temperatures begin to drop, and by the end of September, the average temperature hovers around 12°.
Additionally, the likelihood of rain showers increases towards the end of the month, so visitors should be prepared for some wet weather.
Copenhagen in September can be quite unpredictable, with the potential for both warm, pleasant days and cooler, damp conditions. It's advisable for travelers to pack layers and waterproof clothing to accommodate the changing weather.
Despite the variability, September can still be a lovely time to visit Copenhagen, as the city is less crowded than in the peak summer months, and the changing colors of the foliage add a beautiful backdrop to the city's charming streets and canals.
Copenhagen in September - FAQ
What are the expected maximum and minimum temperatures in Copenhagen during September?
How much rainfall should be expected in Copenhagen during September?
What are the typical wind conditions in Copenhagen during September?
September rainfall patterns in Copenhagen
UV exposure in Copenhagen during September
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