Wengen
September
Weather in Wengen for September 2025
Your guide to Wengen weather in September - trends and predictions
In general, the average temperature in Wengen at the beginning of September is 17.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 8.7 °C by the end of September.
Wengen experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 180.1 mm.
Temperatures
Rain 🌧️
8
Dry days
22
Rainy days
0
Snow days
11°/4°
Temperatures
9 km/h
Avg max wind
84 %
Avg humidity
Wengen in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2  17° | 3 18° | 4 15° | 5  15° | 6 16° | 7  20° |
| 8 16° | 9 8° | 10 13° | 11 12° | 12 4° | 13 2° | 14 3° |
| 15 7° | 16 9° | 17 7° | 18 12° | 19 12° | 20 14° | 21 14° |
| 22 14° | 23 9° | 24 9° | 25 11° | 26 9° | 27  9° | 28 2° |
| 29  9° | 30 12° |
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Temperatures trend during September in Wengen
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy light rain with thunder | 21° /11° | 5.6 mm | 5 | |
| 2 Sept. | Light rain shower | 17° /9° | 10.5 mm | 4 | |
| 3 Sept. | Light rain shower | 18° /9° | 10.9 mm | 4 | |
| 4 Sept. | Light rain shower | 15° /9° | 10.4 mm | 4 | |
| 5 Sept. | Patchy light rain | 15° /9° | 8.2 mm | 4 | |
| 6 Sept. | Patchy rain possible | 16° /7° | 0.9 mm | 4 | |
| 7 Sept. | Sunny | 20° /8° | 0 mm | 6 | |
| 8 Sept. | Patchy light rain with thunder | 16° /8° | 11.9 mm | 4 | |
| 9 Sept. | Light rain shower | 8° /6° | 17.8 mm | 2 | |
| 10 Sept. | Patchy rain possible | 13° /5° | 0.5 mm | 3 | |
| 11 Sept. | Light drizzle | 12° /4° | 7.6 mm | 3 | |
| 12 Sept. | Light rain shower | 4° /-1° | 11.6 mm | 1 | |
| 13 Sept. | Light rain shower | 2° /0° | 14.9 mm | 1 | |
| 14 Sept. | Light rain shower | 3° /-1° | 1.6 mm | 1 | |
| 15 Sept. | Sunny | 7° /-1° | 0 mm | 3 | |
| 16 Sept. | Patchy rain possible | 9° /0° | 0.2 mm | 2 | |
| 17 Sept. | Patchy rain possible | 7° /2° | 0.2 mm | 2 | |
| 18 Sept. | Sunny | 12° /1° | 0 mm | 4 | |
| 19 Sept. | Patchy light rain with thunder | 12° /3° | 4.1 mm | 3 | |
| 20 Sept. | Patchy light rain with thunder | 14° /4° | 1.3 mm | 3 | |
| 21 Sept. | Patchy rain possible | 14° /4° | 0.3 mm | 3 | |
| 22 Sept. | Patchy rain possible | 14° /5° | 0.4 mm | 3 | |
| 23 Sept. | Light rain | 9° /5° | 12.6 mm | 2 | |
| 24 Sept. | Patchy light rain with thunder | 9° /4° | 3.3 mm | 2 | |
| 25 Sept. | Patchy rain possible | 11° /3° | 0.2 mm | 3 | |
| 26 Sept. | Light rain | 9° /6° | 22.7 mm | 2 | |
| 27 Sept. | Moderate or heavy rain with thunder | 9° /4° | 5.4 mm | 2 | |
| 28 Sept. | Light rain shower | 2° /0° | 13.4 mm | 1 | |
| 29 Sept. | Partly cloudy | 9° /-1° | 0.1 mm | 3 | |
| 30 Sept. | Patchy light drizzle | 12° /4° | 3.5 mm | 3 | |
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Important Notice
Our weather forecast for Wengen 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 Wengen forecast closer to your planned date for the most up-to-date weather information.
Wengen in September - FAQ
What are the expected maximum and minimum temperatures in Wengen during September?
Prepare for cooler days with highs just around 11° and colder nights, dipping below 4°.
How much rainfall should be expected in Wengen during September?
Significant rainfall exceeding 180.1 mm is expected in Wengen during September, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Wengen during September?
The average wind speed in Wengen during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Wengen
Explore the daily rainfall trends and prepare for Wengens September weather 💧
UV exposure in Wengen during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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