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 sees moderate rainfall in September, averaging 8 rainy days.
Is September a good time to visit Neuchâtel? check out the best time to travel to Neuchâtel page.
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22
Dry days
8
Rainy days
0
Snow days
24°/11°
Temperatures
10 km/h
Avg max wind
73 %
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 24° and cooler nights around 11°. 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 121.9 mm is expected in Neuchâtel during September, occurring over more than 8 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 10 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Neuchâtel in September?
As you prepare for your trip to Neuchâtel in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Neuchâtel, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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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