Florence Weather in September
Florence in September averages 25°C (77°F) during the day and 14°C (57°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Florence in September
You can typically expect 9 days of rain this month, averaging around 87 mm (3.4 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Florence in September
September is a perfect month in Florence, with 25°C (77°F) during the day and 14°C (57°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Florence in September
With approximately 219 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Italy, check out our Florence's climate page.
Florence Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
30%
Precipitation
87 mm (3.4 in)
Rainy days
9 days
Humidity
69%
Sunshine
219 hours
Percentage Sunshine
59%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Florence typically drop from around 28°C (82°F) at the start of September to approximately 24°C (75°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°F) to 14°C (57°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Florence in September
Browse day-by-day weather records for Florence spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Florence historical weather extremes in September
Our historical data for Florence spans 1976 to 2025, revealing these weather extremes.
- On September 1, 2024, temperatures climbed to 38°C (100°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 10°C (50°F), recorded on September 28, 2007.
- Florence registered its coldest September night on September 17, 1988, with temperatures dropping to -1°C (30°F).
Best Places in Italy in September
Find out more about the weather in Italy and which places have the best travel conditions in this month. See all of Italy in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Florence in September
Warm but pleasant conditions in Florence in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Florence in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Italy, check out our Florence's climate page.
Temperature Rainfall Sunshine Humidity
See the full Florence climate overview or explore weather in Italy.
