Click on a day for an hourly weather forecast
The temperatures in Chieti in September are comfortable with low of 18°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Chieti 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 Chieti in September 2026.
If you’re planning to visit Chieti in the near future, we highly recommend that you review the 14 day weather forecast for Chieti before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 11° / 5° | 5 | 25 | 1 | 106 mm | Ok | Chieti in January |
| February | 12° / 6° | 4 | 22 | 2 | 80 mm | Bad | Chieti in February |
| March | 14° / 7° | 5 | 25 | 1 | 92 mm | Good | Chieti in March |
| April | 17° / 10° | 4 | 26 | 0 | 69 mm | Good | Chieti in April |
| May | 21° / 13° | 5 | 27 | 0 | 75 mm | Good | Chieti in May |
| June | 26° / 18° | 4 | 26 | 0 | 59 mm | Perfect | Chieti in June |
| July | 29° / 21° | 2 | 29 | 0 | 50 mm | Good | Chieti in July |
| August | 30° / 21° | 3 | 29 | 0 | 43 mm | Good | Chieti in August |
| September | 25° / 18° | 4 | 26 | 0 | 68 mm | Perfect | Chieti in September |
| October | 21° / 14° | 3 | 28 | 0 | 62 mm | Good | Chieti in October |
| November | 16° / 10° | 4 | 26 | 0 | 100 mm | Good | Chieti in November |
| December | 12° / 7° | 4 | 26 | 1 | 63 mm | Ok | Chieti in December |