The climate in Fondi during September can be summarized as warm and a little damp.
September is in the fall / autumn in Fondi and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 14°C (58°F) is normal.
Daytime temperature | 24.4°C 75.9°F |
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Nightly temperature | 14.4°C 57.9°F |
Average temperature | 19.4°C 66.9°F |
Daily sunshine | 8.2 hrs |
Avg rainfall | 90 mm 3.6 ins |
Rainy days | 9 days |
Sea temperature | 24.5°C 76.1°F |
Humidity | 72% |
Windspeed | 7.9kph 5 mph |
On average September is the 6th wettest month of the year in Fondi with around 90mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 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 Fondi in September 2025.
Best places to visit in September
Hottest month: | July | 27.6°C 81.7°F |
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Driest month: | July | 34mm 1.3ins |
Sunniest month: | July | 10.8hrs |
Coldest month: | January | 9.6°C 49.3°F |
Wettest month: | November | 156mm 6.1ins |