Click on a day for an hourly weather forecast
The temperatures in Carlisle in September are comfortable with low of 14°C and and high up to 24°C.
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 | 2° / -5° | 5 | 18 | 9 | 56 mm | Awful | Carlisle in January |
| February | 4° / -4° | 5 | 15 | 9 | 74 mm | Awful | Carlisle in February |
| March | 9° / 1° | 6 | 20 | 5 | 71 mm | Bad | Carlisle in March |
| April | 16° / 6° | 5 | 24 | 1 | 67 mm | Good | Carlisle in April |
| May | 21° / 11° | 8 | 23 | 0 | 101 mm | Ok | Carlisle in May |
| June | 26° / 16° | 7 | 23 | 0 | 100 mm | Good | Carlisle in June |
| July | 29° / 19° | 6 | 25 | 0 | 111 mm | Good | Carlisle in July |
| August | 28° / 18° | 6 | 25 | 0 | 108 mm | Perfect | Carlisle in August |
| September | 24° / 14° | 4 | 26 | 0 | 86 mm | Perfect | Carlisle in September |
| October | 18° / 9° | 5 | 26 | 0 | 91 mm | Good | Carlisle in October |
| November | 10° / 2° | 5 | 24 | 1 | 61 mm | Ok | Carlisle in November |
| December | 6° / -1° | 6 | 20 | 5 | 73 mm | Awful | Carlisle in December |