Click on a day for an hourly weather forecast
The temperatures in Cirencester in September are usually low and can range between 10°C and 18°C.
You can expect about 3 to 8 days of rain in Cirencester 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 Cirencester in September 2025.
If you’re planning to visit Cirencester in the near future, we highly recommend that you review the 14 day weather forecast for Cirencester before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 1° | 8 | 20 | 3 | 61 mm | Awful | Cirencester in January |
| February | 8° / 2° | 8 | 17 | 4 | 61 mm | Awful | Cirencester in February |
| March | 10° / 3° | 6 | 23 | 2 | 53 mm | Bad | Cirencester in March |
| April | 13° / 4° | 4 | 25 | 0 | 47 mm | Ok | Cirencester in April |
| May | 16° / 7° | 5 | 26 | 0 | 63 mm | Good | Cirencester in May |
| June | 19° / 10° | 4 | 26 | 0 | 66 mm | Good | Cirencester in June |
| July | 21° / 12° | 5 | 27 | 0 | 65 mm | Good | Cirencester in July |
| August | 21° / 12° | 6 | 25 | 0 | 73 mm | Good | Cirencester in August |
| September | 18° / 10° | 4 | 26 | 0 | 45 mm | Good | Cirencester in September |
| October | 14° / 8° | 6 | 25 | 0 | 80 mm | Good | Cirencester in October |
| November | 10° / 5° | 7 | 22 | 1 | 80 mm | Bad | Cirencester in November |
| December | 8° / 3° | 7 | 22 | 2 | 76 mm | Awful | Cirencester in December |