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Weather in Copenhagen for September 2025

Your guide to Copenhagen weather in September - trends and predictions
  • In general, the average temperature in Copenhagen at the beginning of September is 22.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.7 °C by the end of September.

  • Copenhagen sees moderate rainfall in September, averaging 6 rainy days.

  • Is September a good time to visit Copenhagen? check out the best time to travel to Copenhagen page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
24
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/14°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Copenhagen in September average weather

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Temperatures trend during September in Copenhagen

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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
20° /13° 0.8 mm 5
2 Sept. Sunny
Sunny
20° /13° 0 mm 6
3 Sept. Overcast
Overcast
21° /15° 0 mm 5
4 Sept. Sunny
Sunny
24° /16° 0.4 mm 6
5 Sept. Sunny
Sunny
25° /16° 0 mm 7
6 Sept. Partly cloudy
Partly cloudy
24° /16° 0 mm 7
7 Sept. Sunny
Sunny
23° /16° 0 mm 6
8 Sept. Sunny
Sunny
25° /17° 0.5 mm 6
9 Sept. Overcast
Overcast
23° /16° 5 mm 5
10 Sept. Sunny
Sunny
20° /14° 3.3 mm 5
11 Sept. Sunny
Sunny
20° /13° 10.2 mm 5
12 Sept. Overcast
Overcast
18° /12° 1.6 mm 5
13 Sept. Cloudy
Cloudy
15° /11° 0.1 mm 4
14 Sept. Overcast
Overcast
17° /11° 0 mm 5
15 Sept. Partly cloudy
Partly cloudy
18° /11° 0 mm 5
16 Sept. Sunny
Sunny
19° /14° 0.3 mm 5
17 Sept. Partly cloudy
Partly cloudy
21° /14° 0 mm 6
18 Sept. Cloudy
Cloudy
22° /15° 0 mm 6
19 Sept. Light rain shower
Light rain shower
20° /14° 0.6 mm 5
20 Sept. Light rain
Light rain
21° /15° 1.2 mm 5
21 Sept. Sunny
Sunny
21° /15° 0 mm 6
22 Sept. Light rain
Light rain
19° /14° 1.1 mm 5
23 Sept. Light rain shower
Light rain shower
18° /13° 2.3 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
17° /12° 2.4 mm 4
25 Sept. Overcast
Overcast
17° /13° 1.7 mm 4
26 Sept. Overcast
Overcast
17° /12° 4.9 mm 4
27 Sept. Partly cloudy
Partly cloudy
18° /13° 4.6 mm 5
28 Sept. Cloudy
Cloudy
18° /12° 0.4 mm 4
29 Sept. Light rain
Light rain
15° /12° 1.7 mm 4
30 Sept. Patchy rain possible
Patchy rain possible
15° /11° 0.2 mm 4
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Important Notice
Our weather forecast for Copenhagen in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Copenhagen forecast closer to your planned date for the most up-to-date weather information.

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

Is September a good time to visit Copenhagen?
Yes, September is a good time to traveling to Copenhagen, read more about the best time to visit Copenhagen.
What are the expected maximum and minimum temperatures in Copenhagen during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Copenhagen during September?
Expect minimal rainfall in Copenhagen during September, with a total of 15.3 mm over approximately 6 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Copenhagen during September?
The average wind speed in Copenhagen during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Copenhagen in September?

As you prepare for your trip to Copenhagen in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Copenhagen, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

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Location coordinates Where is Copenhagen?

Get accurate weather forecasts for Copenhagen, located at latitude 55.676 and longitude 12.566. Stay updated with localized weather information tailored for Copenhagen.

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