Neuchâtel
September
Weather in Neuchâtel for September 2025
Your guide to Neuchâtel weather in September - trends and predictions
In general, the average temperature in Neuchâtel at the beginning of September is 25.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.4 °C by the end of September.
Neuchâtel in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 138.5 mm.
Temperatures
Rain 🌧️
11
Dry days
19
Rainy days
0
Snow days
21°/10°
Temperatures
13 km/h
Avg max wind
76 %
Avg humidity
Neuchâtel in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  27° | 2 25° | 3  26° | 4  24° | 5 24° | 6 25° | 7 27° |
| 8 26° | 9 21° | 10 24° | 11 22° | 12  20° | 13 14° | 14  16° |
| 15 20° | 16  20° | 17 19° | 18  17° | 19  19° | 20  21° | 21 21° |
| 22 19° | 23 15° | 24 18° | 25 19° | 26 18° | 27  18° | 28 17° |
| 29 19° | 30 20° |
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Temperatures trend during September in Neuchâtel
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. | Sunny | 27° /12° | 2.2 mm | 7 | |
| 2 Sept. | Sunny | 25° /12° | 2.7 mm | 6 | |
| 3 Sept. | Partly cloudy | 26° /12° | 5 mm | 6 | |
| 4 Sept. | Mist | 24° /13° | 5.5 mm | 6 | |
| 5 Sept. | Sunny | 24° /12° | 3.2 mm | 6 | |
| 6 Sept. | Sunny | 25° /11° | 0 mm | 6 | |
| 7 Sept. | Sunny | 27° /12° | 0 mm | 7 | |
| 8 Sept. | Sunny | 26° /13° | 3.4 mm | 6 | |
| 9 Sept. | Sunny | 21° /13° | 4.2 mm | 5 | |
| 10 Sept. | Sunny | 24° /11° | 0.5 mm | 7 | |
| 11 Sept. | Partly cloudy | 22° /11° | 9.1 mm | 5 | |
| 12 Sept. | Thundery outbreaks possible | 20° /9° | 1.7 mm | 5 | |
| 13 Sept. | Mist | 14° /9° | 7.2 mm | 4 | |
| 14 Sept. | Moderate rain | 16° /7° | 5.4 mm | 4 | |
| 15 Sept. | Mist | 20° /6° | 0 mm | 5 | |
| 16 Sept. | Patchy light drizzle | 20° /7° | 0.2 mm | 5 | |
| 17 Sept. | Partly cloudy | 19° /10° | 0.3 mm | 5 | |
| 18 Sept. | Moderate or heavy rain shower | 17° /8° | 12.1 mm | 4 | |
| 19 Sept. | Patchy rain possible | 19° /8° | 0.9 mm | 5 | |
| 20 Sept. | Cloudy | 21° /7° | 0.4 mm | 5 | |
| 21 Sept. | Light rain shower | 21° /9° | 6.7 mm | 5 | |
| 22 Sept. | Light rain shower | 19° /9° | 9.8 mm | 5 | |
| 23 Sept. | Patchy rain possible | 15° /8° | 9.8 mm | 4 | |
| 24 Sept. | Sunny | 18° /6° | 0.2 mm | 5 | |
| 25 Sept. | Sunny | 19° /5° | 1.4 mm | 5 | |
| 26 Sept. | Sunny | 18° /8° | 38.5 mm | 5 | |
| 27 Sept. | Overcast | 18° /8° | 3.7 mm | 4 | |
| 28 Sept. | Partly cloudy | 17° /8° | 3.4 mm | 5 | |
| 29 Sept. | Sunny | 19° /7° | 0 mm | 5 | |
| 30 Sept. | Sunny | 20° /9° | 0.9 mm | 5 | |
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Important Notice
Our weather forecast for Neuchâtel 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 Neuchâtel forecast closer to your planned date for the most up-to-date weather information.
Neuchâtel in September - FAQ
What are the expected maximum and minimum temperatures in Neuchâtel 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 Neuchâtel during September?
Significant rainfall exceeding 138.5 mm is expected in Neuchâtel during September, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Neuchâtel during September?
The average wind speed in Neuchâtel during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Neuchâtel
Explore the daily rainfall trends and prepare for Neuchâtels September weather 💧
UV exposure in Neuchâtel during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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