Thun
September
Weather in Thun for September 2027
Your guide to Thun weather in September - trends and predictions
In general, the average temperature in Thun at the beginning of September is 20.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.4 °C by the end of September.
The climate of Thun in September is notably wet, with an average of 12 rainy days, and a total of 122.5 mm of precipitation.
Is September a good time to visit Thun? check out the best time to travel to Thun page.
Temperatures
Rain 🌧️
More
18
Dry days
12
Rainy days
0
Snow days
18°/9°
Temperatures
8 km/h
Avg max wind
75 %
Avg humidity
Thun Weather September
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Temperatures trend during September in Thun
See the weather trend as well as the moving average line
September weather in Thun day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 19° /8° | 6.2 mm | 5 | |
| 2 Sept. | Light rain | 18° /10° | 7.6 mm | 5 | |
| 3 Sept. | Light rain | 20° /10° | 4.7 mm | 6 | |
| 4 Sept. |  Moderate rain | 21° /9° | 11.4 mm | 5 | |
| 5 Sept. | Light rain | 19° /9° | 3.1 mm | 4 | |
| 6 Sept. |  Sunny | 22° /12° | 0.1 mm | 6 | |
| 7 Sept. | Sunny | 24° /14° | 0.1 mm | 6 | |
| 8 Sept. | Light rain | 23° /13° | 4.5 mm | 6 | |
| 9 Sept. | Moderate rain | 18° /9° | 15.2 mm | 4 | |
| 10 Sept. |  Patchy rain possible | 16° /8° | 1.8 mm | 4 | |
| 11 Sept. | Light rain | 18° /10° | 3.3 mm | 5 | |
| 12 Sept. | Light rain | 17° /8° | 3.6 mm | 5 | |
| 13 Sept. |  Moderate or heavy rain shower | 16° /8° | 7.3 mm | 3 | |
| 14 Sept. | Light rain | 15° /7° | 3.7 mm | 4 | |
| 15 Sept. | Patchy rain possible | 19° /7° | 2.1 mm | 4 | |
| 16 Sept. | Light rain | 17° /6° | 5.2 mm | 3 | |
| 17 Sept. | Sunny | 17° /6° | 0 mm | 4 | |
| 18 Sept. | Light rain | 18° /8° | 3.3 mm | 4 | |
| 19 Sept. | Patchy rain possible | 19° /9° | 0.8 mm | 5 | |
| 20 Sept. | Patchy rain possible | 21° /11° | 1.1 mm | 4 | |
| 21 Sept. | Light rain | 21° /11° | 4.7 mm | 4 | |
| 22 Sept. |  Patchy light rain with thunder | 16° /9° | 9.2 mm | 4 | |
| 23 Sept. | Light rain | 14° /7° | 4.2 mm | 3 | |
| 24 Sept. | Light rain shower | 14° /6° | 1.5 mm | 3 | |
| 25 Sept. | Sunny | 16° /7° | 0.5 mm | 4 | |
| 26 Sept. | Moderate rain | 16° /8° | 12.5 mm | 4 | |
| 27 Sept. | Patchy rain possible | 17° /7° | 1.4 mm | 4 | |
| 28 Sept. | Light rain | 16° /8° | 2.8 mm | 4 | |
| 29 Sept. | Sunny | 17° /10° | 0 mm | 4 | |
| 30 Sept. |  Mist | 19° /11° | 0.6 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Thun 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 Thun forecast closer to your planned date for the most up-to-date weather information.
Change Month
Thun in September - FAQ
What are the expected maximum and minimum temperatures in Thun during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Thun during September?
Significant rainfall exceeding 122.5 mm is expected in Thun during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Thun during September?
The average wind speed in Thun during September is 8 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Thun
Explore the daily rainfall trends and prepare for Thuns September weather 💧
Typically, Thun has 12 rainy days in September with a total of 122.5 mm of rainfall.
UV exposure in Thun during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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