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Weather in Hannover for September 2025

Your guide to Hannover weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Hannover is slightly cooler than the historical average by -1.7 °C.

  • Expect cooler weather in the next days in Hannover with the forecast suggesting a temperature of 19.7 °C, lower than the historical average.

  • In general, the average temperature in Hannover at the beginning of September is 25.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.1 °C by the end of September.

    • Rain 🌧️

  • The climate of Hannover in September is notably wet, with an average of 15 rainy days, and a total of 56.5 mm of precipitation.

    • More

  • Is September a good time to visit Hannover? check out the best time to travel to Hannover page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
15
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/13°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Hannover Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
22°
2
Cloudy
24°
3
Partly cloudy
25°
4
Partly cloudy
26°
5
Sunny
27°
6
Sunny
27°
7
Sunny
27°
8
Sunny
27°
9
Sunny
24°
10
Sunny
23°
11
Light rain shower
23°
12
Thundery outbreaks possible
20°
13
Light rain shower
17°
14
Sunny
18°
15
Patchy rain possible
22°
16
Patchy rain possible
18°
17
Patchy rain possible
19°
18
Patchy rain possible
24°
19
Sunny
29°
20
Sunny
31°
21
Patchy rain possible
19°
22
Patchy rain possible
23°
23
Patchy rain possible
15°
24
Patchy rain possible
18°
25
Patchy rain possible
13°
26
Partly cloudy
14°
27
Sunny
15°
28
Partly cloudy
16°
29
Light rain shower
20°
30
Patchy rain possible
17°

Temperatures trend during September in Hannover

See the weather trend as well as the moving average line

September weather in Hannover day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
 22° /13° 1.1 mm 5
2 Sept. Cloudy
Cloudy
 24° /13° 0.3 mm 6
3 Sept. Partly cloudy
Partly cloudy
 25° /15° 0.3 mm 6
4 Sept. Partly cloudy
Partly cloudy
 26° /15° 6.5 mm 6
5 Sept. Sunny
Sunny
 27° /15° 2.6 mm 6
6 Sept. Sunny
Sunny
 27° /15° 0 mm 7
7 Sept. Sunny
Sunny
 27° /15° 0 mm 6
8 Sept. Sunny
Sunny
 27° /14° 1.5 mm 6
9 Sept. Sunny
Sunny
 24° /15° 10.3 mm 6
10 Sept. Sunny
Sunny
 23° /13° 2.7 mm 5
11 Sept. Light rain shower
Light rain shower
 23° /13° 2.5 mm 6
12 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 20° /11° 2.5 mm 5
13 Sept. Light rain shower
Light rain shower
 17° /9° 1.1 mm 4
14 Sept. Sunny
Sunny
 18° /8° 0.4 mm 4
15 Sept. Patchy rain possible
Patchy rain possible
 22° /13° 4.8 mm 0.8
16 Sept. Patchy rain possible
Patchy rain possible
 18° /13° 2.7 mm 0.5
17 Sept. Patchy rain possible
Patchy rain possible
 19° /11° 0.2 mm 0.8
18 Sept. Patchy rain possible
Patchy rain possible
 24° /15° 0.3 mm 1
19 Sept. Sunny
Sunny
 29° /14° 0 mm 1.1
20 Sept. Sunny
Sunny
 31° /17° 0 mm 6
21 Sept. Patchy rain possible
Patchy rain possible
 19° /17° 1.1 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 23° /14° 2.1 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 15° /12° 3.6 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
 18° /11° 0.4 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 13° /7° 0.5 mm 3
26 Sept. Partly cloudy
Partly cloudy
 14° /5° 0 mm 3
27 Sept. Sunny
Sunny
 15° /5° 0 mm 3
28 Sept. Partly cloudy
Partly cloudy
 16° /6° 0 mm 4
29 Sept. Light rain shower
Light rain shower
 20° /10° 2 mm 5
30 Sept. Patchy rain possible
Patchy rain possible
 17° /8° 1.9 mm 4
Next
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.
Change Month
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Hannover weather in September vs August vs October

Compare September weather in Hannover with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures23°/15°22°/13°15°/8°
Rainfall102 mm56 mm83 mm
Wind17.4 km/h17.9 km/h20.8 km/h
Humidity70%67%79%
Rainy days20 days15 days21 days
Dry days11 days15 days10 days

Planning a trip to Hannover? Discover the best time to visit

Hannover in September - FAQ

What are the expected maximum and minimum temperatures in Hannover during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Hannover during September?
Moderate rainfall is anticipated in Hannover during September, with a total of 56.5 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Hannover during September?
The average wind speed in Hannover during September is 18 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
  • 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 Hannover

Explore the daily rainfall trends and prepare for Hannovers September weather 💧

UV exposure in Hannover during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Hannover?

Get accurate weather forecasts for Hannover, located at latitude 52.371 and longitude 9.733. Stay updated with localized weather information tailored for Hannover.

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