Weather in Florence in September 2025
Average weather
Average temperature in Florence in September
Going from a maximum of +34°C during the day to a minimum of +13°C during the night, the temperature in September averages around +30°C.
The average maximum temperature goes up 10% by the end of the month, compared with the beginning of the month, from +29°C to +31°C.
Is Florence warm or cold in September?
Florence is typically warm in September.
Maximum temperatures go down compared to the previous month from +30°C to +25°C. The minimum temperature also goes down from +19°C to +16°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Florence:
Climate in Florence in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +30°C | +25°C | +20°C | ||||
| Min. temperature | ||||||
| +11°C | +6°C | +1°C | ||||
| Max. temperature | ||||||
| +41°C | +34°C | +33°C | ||||
| Rainfall | ||||||
| 39 mm | 80 mm | 103 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 63% | 68% | 76% | ||||
| Air pressure | ||||||
| 1013 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 17 | 13 | 9 | ||||
| Cloudy days | ||||||
| 4 | 5 | 7 | ||||
| Rainy days | ||||||
| 7 | 9 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September typically has worse weather conditions compared to August. It’s getting colder in September. From +30°C in the day, the average maximum temperature lowers to +25°C. Prepare for more rain. Average rainfall goes from 39 mm to 80 mm. Humidity rises from 63% to 68%. The average wind speed doesn’t change much during September, staying around 1 m/s. The days becoming less sunny, going from 17 sunny days in August to 13 in September.
Next month (October) brings a further decline in the weather.
Wind
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Florence is gradually increasing during September, going from 1 m/s to 1 m/s over the course of the month.
Rain
How was the weather last September in Florence?
Climate Change over Years
The climate in Florence in September has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+17°C) and the highest in 2022 (+22°C). The driest year was 2011 with only 499 mm of rainfall, and the wettest year was 2019 with 1440 mm.
FAQ
Is September a good time to visit Florence?
Can you sunbathe in Florence in September?
Is Florence rainy in September?
Is it sunny in Florence in September?
Other cities in Italy
Monthly weather in Florence
Source of the data
For this page, we’ve looked at the typical weather in Florence, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.