The climate in Trapani during September can be summarized as warm, humid and reasonably dry.
September is in the fall / autumn in Trapani and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 19°C (66°F) is normal.
| Daytime temperature | 26.8°C 80.2°F |
|---|---|
| Nightly temperature | 19°C 66.2°F |
| Average temperature | 22.9°C 73.2°F |
| Daily sunshine | 9 hrs |
| Avg rainfall | 45 mm 1.8 ins |
| Rainy days | 5 days |
| Sea temperature | 24.9°C 76.8°F |
| Humidity | 75% |
| Windspeed | 11.5kph 7 mph |
On average September is the 5th driest month of the year in Trapani with around 45mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 9 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 Trapani in September 2025.
Best places to visit in September
| Hottest month: | August | 29.1°C 84.4°F |
|---|---|---|
| Driest month: | July | 3mm 0.1ins |
| Sunniest month: | July | 11.9hrs |
| Coldest month: | January | 14°C 57.2°F |
| Wettest month: | November | 79mm 3.1ins |