Hannover
September
Weather in Hannover for September 2025
Your guide to Hannover weather in September - trends and predictions
In general, the average temperature in Hannover at the beginning of September is 26.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19 °C by the end of September.
Hannover sees moderate rainfall in September, averaging 6 rainy days.
Is September a good time to visit Hannover? check out the best time to travel to Hannover page.
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24
Dry days
6
Rainy days
0
Snow days
24°/14°
Temperatures
15 km/h
Avg max wind
65 %
Avg humidity
Hannover in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  22° | 2  24° | 3  25° | 4 26° | 5  30° | 6 29° | 7 29° |
| 8 27° | 9 24° | 10 23° | 11 23° | 12  20° | 13  17° | 14 18° |
| 15 20° | 16 22° | 17 25° | 18 24° | 19 22° | 20 23° | 21 24° |
| 22  21° | 23 19° | 24 19° | 25 19° | 26 20° | 27 20° | 28 18° |
| 29 20° | 30 17° |
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Temperatures trend during September in Hannover
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. | Light rain shower | 22° /12° | 1.5 mm | 6 | |
| 2 Sept. | Cloudy | 24° /13° | 0.4 mm | 6 | |
| 3 Sept. | Partly cloudy | 25° /16° | 0.5 mm | 6 | |
| 4 Sept. | Partly cloudy | 26° /14° | 9.6 mm | 7 | |
| 5 Sept. | Sunny | 30° /16° | 0.2 mm | 7 | |
| 6 Sept. | Sunny | 29° /17° | 0.1 mm | 7 | |
| 7 Sept. | Sunny | 29° /16° | 0 mm | 7 | |
| 8 Sept. | Sunny | 27° /16° | 2.2 mm | 7 | |
| 9 Sept. | Sunny | 24° /15° | 15.4 mm | 6 | |
| 10 Sept. | Sunny | 23° /14° | 2.6 mm | 6 | |
| 11 Sept. | Sunny | 23° /13° | 2.8 mm | 6 | |
| 12 Sept. | Thundery outbreaks possible | 20° /11° | 3.7 mm | 5 | |
| 13 Sept. | Overcast | 17° /8° | 0.5 mm | 4 | |
| 14 Sept. | Sunny | 18° /7° | 0 mm | 5 | |
| 15 Sept. | Partly cloudy | 20° /8° | 0 mm | 5 | |
| 16 Sept. | Partly cloudy | 22° /11° | 0.2 mm | 6 | |
| 17 Sept. | Cloudy | 25° /12° | 0 mm | 6 | |
| 18 Sept. | Partly cloudy | 24° /15° | 0 mm | 6 | |
| 19 Sept. | Cloudy | 22° /13° | 0 mm | 5 | |
| 20 Sept. | Cloudy | 23° /14° | 0 mm | 6 | |
| 21 Sept. | Cloudy | 24° /12° | 0.9 mm | 6 | |
| 22 Sept. | Light drizzle | 21° /12° | 1.4 mm | 5 | |
| 23 Sept. | Patchy rain possible | 19° /12° | 0.5 mm | 5 | |
| 24 Sept. | Sunny | 19° /10° | 2 mm | 5 | |
| 25 Sept. | Overcast | 19° /11° | 3.1 mm | 5 | |
| 26 Sept. | Overcast | 20° /12° | 2.8 mm | 5 | |
| 27 Sept. | Sunny | 20° /12° | 1.1 mm | 5 | |
| 28 Sept. | Partly cloudy | 18° /11° | 1.2 mm | 5 | |
| 29 Sept. | Light rain shower | 20° /10° | 2 mm | 5 | |
| 30 Sept. | Patchy rain possible | 17° /8° | 1.9 mm | 4 | |
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Important Notice
Our weather forecast for Hannover 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 Hannover forecast closer to your planned date for the most up-to-date weather information.
Hannover in September - FAQ
What are the expected maximum and minimum temperatures in Hannover during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Hannover during September?
Expect minimal rainfall in Hannover during September, with a total of 18.9 mm over approximately 6 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Hannover during September?
The average wind speed in Hannover during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Hannover in September?
As you prepare for your trip to Hannover 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 Hannover, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- 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
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