Click on a day for an hourly weather forecast
The weather in Ostuni in September is hot. The average temperatures are between 21°C and 29°C.
You can expect about 3 to 8 days of rain in Ostuni 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 Ostuni in September 2025.
If you’re planning to visit Ostuni in the near future, we highly recommend that you review the 14 day weather forecast for Ostuni before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 12° / 7° | 5 | 25 | 1 | 92 mm | Ok | Ostuni in January |
| February | 14° / 7° | 5 | 22 | 1 | 104 mm | Good | Ostuni in February |
| March | 15° / 9° | 6 | 24 | 0 | 107 mm | Good | Ostuni in March |
| April | 19° / 11° | 5 | 25 | 0 | 76 mm | Good | Ostuni in April |
| May | 23° / 15° | 4 | 27 | 0 | 62 mm | Perfect | Ostuni in May |
| June | 29° / 20° | 3 | 27 | 0 | 41 mm | Good | Ostuni in June |
| July | 32° / 23° | 2 | 29 | 0 | 29 mm | Good | Ostuni in July |
| August | 33° / 24° | 1 | 30 | 0 | 16 mm | Good | Ostuni in August |
| September | 29° / 21° | 3 | 27 | 0 | 53 mm | Good | Ostuni in September |
| October | 23° / 16° | 5 | 26 | 0 | 96 mm | Perfect | Ostuni in October |
| November | 18° / 13° | 5 | 25 | 0 | 128 mm | Good | Ostuni in November |
| December | 14° / 9° | 3 | 27 | 0 | 65 mm | Good | Ostuni in December |