The climate in Amiens during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Amiens and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 19°C (67°F), whilst at night 11°C (51°F) is normal.
| Daytime temperature | 19.2°C 66.6°F |
|---|---|
| Nightly temperature | 10.8°C 51.4°F |
| Average temperature | 15°C 59°F |
| Daily sunshine | 6 hrs |
| Avg rainfall | 63 mm 2.5 ins |
| Rainy days | 14 days |
| Sea temperature | 18°C 64.3°F |
| Humidity | 80% |
| Windspeed | 13.7kph 9 mph |
On average September is the 4th wettest month of the year in Amiens with around 63mm 2.5 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 6 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 Amiens in September 2025.
Best places to visit in September
| Hottest month: | July | 21.5°C 70.7°F |
|---|---|---|
| Driest month: | April | 47mm 1.9ins |
| Sunniest month: | August | 7.6hrs |
| Coldest month: | January | 5.6°C 42.1°F |
| Wettest month: | November | 73mm 2.9ins |