Click on a day for an hourly weather forecast
The temperatures in San Gimignano in September are comfortable with low of 13°C and and high up to 27°C.
You can expect about 3 to 8 days of rain in San Gimignano during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in San Gimignano in September 2025.
If you’re planning to visit San Gimignano in the near future, we highly recommend that you review the 14 day weather forecast for San Gimignano before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 1° | 6 | 24 | 1 | 76 mm | Ok | San Gimignano in January |
| February | 11° / 2° | 7 | 20 | 2 | 91 mm | Awful | San Gimignano in February |
| March | 15° / 4° | 5 | 26 | 0 | 82 mm | Good | San Gimignano in March |
| April | 19° / 7° | 5 | 25 | 0 | 74 mm | Good | San Gimignano in April |
| May | 22° / 9° | 6 | 25 | 0 | 96 mm | Good | San Gimignano in May |
| June | 28° / 13° | 6 | 25 | 0 | 82 mm | Perfect | San Gimignano in June |
| July | 32° / 16° | 4 | 28 | 0 | 45 mm | Good | San Gimignano in July |
| August | 32° / 16° | 3 | 28 | 0 | 42 mm | Good | San Gimignano in August |
| September | 27° / 13° | 4 | 26 | 0 | 73 mm | Perfect | San Gimignano in September |
| October | 21° / 9° | 4 | 27 | 0 | 84 mm | Good | San Gimignano in October |
| November | 15° / 6° | 6 | 24 | 0 | 108 mm | Good | San Gimignano in November |
| December | 11° / 3° | 6 | 25 | 0 | 84 mm | Ok | San Gimignano in December |