Florence weather by month
Florence runs from about 6°C in December to 28°C in August, with October the wettest month at 218 mm.
warmest month
August
28°C
coolest month
December
6°C
wettest month
October
218 mm
worst air month
December
21 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 7°C | 91 mm | 200 h | 15 |
| February | 10°C | 117 mm | 179 h | 17 |
| March | 12°C | 128 mm | 226 h | 16 |
| April | 14°C | 85 mm | 330 h | 11 |
| May | 17°C | 166 mm | 355 h | 8 |
| June | 21°C | 47 mm | 385 h | 8 |
| July | 27°C | 12 mm | 435 h | 7 |
| August | 28°C | 12 mm | 386 h | 8 |
| September | 20°C | 166 mm | 297 h | 6 |
| October | 17°C | 218 mm | 205 h | 7 |
| November | 10°C | 62 mm | 220 h | 12 |
| December | 6°C | 91 mm | 187 h | 21 |
About 3,405 hours of sun a year. Roughly 121 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-22. Full method, licences and the list of sources we rejected are on the methodology page.