The climate in Florence during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Florence and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (78°F), whilst at night 14°C (57°F) is normal.
Daytime temperature | 25.7°C 78.2°F |
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Nightly temperature | 14°C 57.1°F |
Average temperature | 19.8°C 67.6°F |
Daily sunshine | 7.6 hrs |
Avg rainfall | 73 mm 2.9 ins |
Rainy days | 9 days |
Sea temperature | 23.1°C 73.5°F |
Humidity | 70% |
Windspeed | 7.2kph 5 mph |
On average September is the 4th wettest month of the year in Florence with around 73mm 2.9 inches of rain making it a reasonably dry 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 7.6 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 Florence in September 2025.
Best places to visit in September
Hottest month: | July | 29.7°C 85.5°F |
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Driest month: | July | 35mm 1.4ins |
Sunniest month: | July | 10.5hrs |
Coldest month: | January | 8.8°C 47.8°F |
Wettest month: | November | 114mm 4.5ins |