Zürich
September
Weather in Zürich for September 2025
Your guide to Zürich weather in September - trends and predictions
In general, the average temperature in Zürich at the beginning of September is 25.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °C by the end of September.
Zürich experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 85.6 mm.
Temperatures
Rain 🌧️
9
Dry days
21
Rainy days
0
Snow days
21°/10°
Temperatures
9 km/h
Avg max wind
80 %
Avg humidity
Zürich Weather September
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Temperatures trend during September in Zürich
See the weather trend as well as the moving average line
September weather in Zürich day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 25° /11° | 0.4 mm | 6 | |
| 2 Sept. |  Partly cloudy | 25° /10° | 0.5 mm | 7 | |
| 3 Sept. | Overcast | 26° /12° | 2.7 mm | 6 | |
| 4 Sept. |  Heavy rain at times | 25° /12° | 2.2 mm | 6 | |
| 5 Sept. |  Patchy rain possible | 25° /12° | 0.5 mm | 6 | |
| 6 Sept. | Patchy rain possible | 26° /12° | 0.7 mm | 6 | |
| 7 Sept. |  Sunny | 27° /12° | 0.1 mm | 6 | |
| 8 Sept. | Partly cloudy | 25° /13° | 6.3 mm | 6 | |
| 9 Sept. | Patchy rain possible | 23° /13° | 4.2 mm | 6 | |
| 10 Sept. |  Moderate or heavy rain shower | 23° /12° | 2.9 mm | 5 | |
| 11 Sept. | Patchy rain possible | 22° /11° | 3.7 mm | 6 | |
| 12 Sept. | Patchy rain possible | 22° /9° | 0.9 mm | 5 | |
| 13 Sept. | Overcast | 20° /10° | 2.7 mm | 5 | |
| 14 Sept. |  Cloudy | 19° /11° | 3.4 mm | 4 | |
| 15 Sept. |  Fog | 21° /10° | 4.7 mm | 5 | |
| 16 Sept. | Heavy rain at times | 19° /10° | 3 mm | 5 | |
| 17 Sept. | Overcast | 18° /9° | 2.7 mm | 4 | |
| 18 Sept. | Overcast | 19° /8° | 2.9 mm | 4 | |
| 19 Sept. | Patchy rain possible | 17° /8° | 3.4 mm | 4 | |
| 20 Sept. | Patchy rain possible | 19° /7° | 0.4 mm | 5 | |
| 21 Sept. | Partly cloudy | 20° /8° | 0.4 mm | 5 | |
| 22 Sept. | Partly cloudy | 18° /6° | 5.1 mm | 5 | |
| 23 Sept. | Partly cloudy | 19° /8° | 2 mm | 5 | |
| 24 Sept. | Sunny | 19° /7° | 1.8 mm | 5 | |
| 25 Sept. | Mist | 20° /7° | 0.3 mm | 5 | |
| 26 Sept. | Patchy rain possible | 18° /9° | 10 mm | 5 | |
| 27 Sept. | Cloudy | 18° /8° | 4.9 mm | 5 | |
| 28 Sept. | Patchy rain possible | 16° /8° | 8.7 mm | 4 | |
| 29 Sept. | Patchy rain possible | 17° /8° | 3.5 mm | 4 | |
| 30 Sept. | Overcast | 17° /7° | 0.5 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Zürich 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 Zürich forecast closer to your planned date for the most up-to-date weather information.
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Zürich in September - FAQ
What are the expected maximum and minimum temperatures in Zürich during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Zürich during September?
Moderate rainfall is anticipated in Zürich during September, with a total of 85.6 mm spread over approximately 21 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Zürich during September?
The average wind speed in Zürich during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Zürich
Explore the daily rainfall trends and prepare for Zürichs September weather 💧
UV exposure in Zürich during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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