What to pack for Florence in September
- t-shirts and light layers
- a light jacket for evenings
- a compact umbrella or rain shell — rain is frequent
Humidity averages 69%; max daily wind around 15 km/h.
How September compares
Best months in Florence: April & September–October. See the full best time to visit Florence guide.
Florence in September: the details
In September, Florence sees average daytime highs of 27°C (81°F) and overnight lows of 16°C (60°F). Rainfall totals roughly 128 mm across 9.5 rainy days, and the sun shines about 10.5 hours per day with 12.3 hours of daylight mid-month. Relative humidity averages 69%.
In context: September is the 4th-warmest month and the third-wettest in Florence. The sunniest month is July (13.8 h/day).
| Metric | September average |
|---|---|
| Daytime high | 27°C / 81°F |
| Overnight low | 16°C / 60°F |
| Rainfall | 128 mm over 9.5 rainy days |
| Sunshine | 10.5 h/day (12.3 h daylight) |
| Humidity | 69% |
| Travel score | 9.3 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Florence, Italy (43.78, 11.25) — see our methodology. Actual conditions vary year to year.
Not set on Florence? Browse the best places to visit in September ranked by travel score.
Frequently asked questions
How hot is Florence in September?
Daytime highs in Florence in September average 27°C (81°F); nights drop to about 16°C.
Does it rain in Florence in September?
Expect around 9.5 rainy days and 128 mm of rainfall in September.
Is September a good time to visit Florence?
September is one of the best months to visit Florence. Overall travel score: 9.3/10. The best months are April & September–October.
Also good in September, near Florence
Where should you go next month?
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