The climate in Campobasso during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Campobasso and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 15°C (58°F) is normal.
| Daytime temperature | 22.8°C 73°F |
|---|---|
| Nightly temperature | 14.5°C 58°F |
| Average temperature | 18.6°C 65.5°F |
| Daily sunshine | 7.8 hrs |
| Avg rainfall | 51 mm 2 ins |
| Rainy days | 8 days |
| Sea temperature | 24°C 75.2°F |
| Humidity | 68% |
| Windspeed | 9.7kph 6 mph |
On average September is the 6th driest month of the year in Campobasso with around 51mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 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 Campobasso in September 2025.
Best places to visit in September
| Hottest month: | July | 26.3°C 79.3°F |
|---|---|---|
| Driest month: | July | 31mm 1.2ins |
| Sunniest month: | August | 9.3hrs |
| Coldest month: | January | 7.3°C 45.1°F |
| Wettest month: | November | 81mm 3.2ins |