Groningen
September
Weather in Groningen for September 2025
Your guide to Groningen weather in September - trends and predictions
Moderate Wind Warning - See hour by hour.
Until now, September 2025 in Groningen is slightly cooler than the historical average by -1.5 °C.
Expect cooler weather in the next days in Groningen with the forecast suggesting a temperature of 18.9 °C, lower than the historical average.
In general, the average temperature in Groningen at the beginning of September is 23.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.9 °C by the end of September.
Groningen in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 67.4 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
13
Dry days
17
Rainy days
0
Snow days
20°/12°
Temperatures
21 km/h
Avg max wind
75 %
Avg humidity
Groningen Weather September
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Temperatures trend during September in Groningen
See the weather trend as well as the moving average line
September weather in Groningen day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 22° /12° | 4.5 mm | 5 | |
| 2 Sept. |  Cloudy | 23° /13° | 3.3 mm | 5 | |
| 3 Sept. |  Light rain shower | 23° /14° | 2.8 mm | 5 | |
| 4 Sept. | Overcast | 21° /13° | 3.6 mm | 5 | |
| 5 Sept. | Patchy rain possible | 25° /14° | 0.1 mm | 6 | |
| 6 Sept. |  Sunny | 26° /14° | 0 mm | 7 | |
| 7 Sept. | Sunny | 26° /14° | 0 mm | 6 | |
| 8 Sept. | Sunny | 24° /14° | 0.2 mm | 6 | |
| 9 Sept. |  Light drizzle | 22° /14° | 0.6 mm | 5 | |
| 10 Sept. | Sunny | 21° /13° | 2.7 mm | 5 | |
| 11 Sept. | Light rain shower | 20° /11° | 5.3 mm | 4 | |
| 12 Sept. | Overcast | 18° /10° | 3.9 mm | 4 | |
| 13 Sept. | Light rain shower | 16° /9° | 1.6 mm | 4 | |
| 14 Sept. |  Partly cloudy | 18° /8° | 0.1 mm | 5 | |
| 15 Sept. |  Moderate rain | 19° /13° | 5.5 mm | 0.9 | |
| 16 Sept. | Moderate rain | 16° /11° | 11.9 mm | 0.4 | |
| 17 Sept. | Patchy rain possible | 17° /11° | 0.6 mm | 0.8 | |
| 18 Sept. | Patchy rain possible | 21° /17° | 0.5 mm | 0.2 | |
| 19 Sept. | Patchy rain possible | 21° /16° | 0.5 mm | 4 | |
| 20 Sept. | Partly cloudy | 25° /15° | 0 mm | 5 | |
| 21 Sept. | Patchy rain possible | 21° /12° | 0.3 mm | 4 | |
| 22 Sept. | Patchy rain possible | 20° /11° | 0.5 mm | 3 | |
| 23 Sept. | Patchy rain possible | 18° /10° | 0.7 mm | 3 | |
| 24 Sept. | Sunny | 18° /9° | 0 mm | 4 | |
| 25 Sept. | Sunny | 18° /8° | 0 mm | 4 | |
| 26 Sept. | Patchy rain possible | 13° /10° | 0.9 mm | 3 | |
| 27 Sept. | Patchy rain possible | 19° /10° | 0.2 mm | 3 | |
| 28 Sept. | Patchy rain possible | 16° /10° | 1 mm | 4 | |
| 29 Sept. | Light rain shower | 18° /8° | 1.1 mm | 4 | |
| 30 Sept. | Patchy rain possible | 16° /9° | 6.4 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Groningen 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 Groningen forecast closer to your planned date for the most up-to-date weather information.
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Groningen in September - FAQ
What are the expected maximum and minimum temperatures in Groningen during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Groningen during September?
Moderate rainfall is anticipated in Groningen during September, with a total of 67.4 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Groningen during September?
The average wind speed in Groningen during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Groningen
Explore the daily rainfall trends and prepare for Groningens September weather 💧
UV exposure in Groningen during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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