The climate in Hameln during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Hameln and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 19°C (65°F), whilst at night 10°C (49°F) is normal.
| Daytime temperature | 18.6°C 65.4°F |
|---|---|
| Nightly temperature | 9.5°C 49°F |
| Average temperature | 14°C 57.2°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 56 mm 2.2 ins |
| Rainy days | 14 days |
| Sea temperature | 17.4°C 63.3°F |
| Humidity | 80% |
| Windspeed | 11.5kph 7 mph |
On average September is the 4th driest month of the year in Hameln with around 56mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Hameln in September 2025.
Best places to visit in September
| Hottest month: | July | 21.8°C 71.2°F |
|---|---|---|
| Driest month: | February | 47mm 1.9ins |
| Sunniest month: | August | 7.2hrs |
| Coldest month: | January | 2.6°C 36.7°F |
| Wettest month: | June | 81mm 3.2ins |