Click on a day for an hourly weather forecast
The temperatures in Carlisle in September are quite cold with temperatures between 7°C and 13°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Carlisle 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 Carlisle in September 2025.
If you’re planning to visit Carlisle in the near future, we highly recommend that you review the 14 day weather forecast for Carlisle before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -1° | 9 | 5 | 19 | 107 mm | Awful | Carlisle in January |
| February | 3° / -1° | 8 | 5 | 17 | 117 mm | Awful | Carlisle in February |
| March | 6° / 1° | 7 | 11 | 14 | 84 mm | Awful | Carlisle in March |
| April | 8° / 2° | 8 | 14 | 9 | 61 mm | Awful | Carlisle in April |
| May | 11° / 5° | 11 | 15 | 5 | 95 mm | Awful | Carlisle in May |
| June | 14° / 7° | 8 | 21 | 0 | 112 mm | Ok | Carlisle in June |
| July | 15° / 9° | 9 | 22 | 0 | 126 mm | Ok | Carlisle in July |
| August | 14° / 9° | 9 | 22 | 0 | 132 mm | Ok | Carlisle in August |
| September | 13° / 7° | 6 | 23 | 0 | 89 mm | Ok | Carlisle in September |
| October | 9° / 5° | 10 | 18 | 2 | 124 mm | Awful | Carlisle in October |
| November | 5° / 2° | 11 | 8 | 12 | 126 mm | Awful | Carlisle in November |
| December | 4° / 0° | 10 | 7 | 16 | 138 mm | Awful | Carlisle in December |