Click on a day for an hourly weather forecast
The temperatures in Folkestone in September are usually low and can range between 14°C and 18°C.
You can expect about 3 to 8 days of rain in Folkestone 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 Folkestone in September 2025.
If you’re planning to visit Folkestone in the near future, we highly recommend that you review the 14 day weather forecast for Folkestone before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 4° | 8 | 19 | 4 | 92 mm | Awful | Folkestone in January |
| February | 8° / 5° | 7 | 17 | 4 | 70 mm | Awful | Folkestone in February |
| March | 9° / 6° | 6 | 24 | 1 | 51 mm | Ok | Folkestone in March |
| April | 12° / 7° | 3 | 26 | 0 | 42 mm | Ok | Folkestone in April |
| May | 14° / 10° | 4 | 27 | 0 | 56 mm | Good | Folkestone in May |
| June | 17° / 12° | 4 | 26 | 0 | 64 mm | Good | Folkestone in June |
| July | 19° / 15° | 4 | 27 | 0 | 70 mm | Good | Folkestone in July |
| August | 20° / 15° | 6 | 25 | 0 | 86 mm | Good | Folkestone in August |
| September | 18° / 14° | 4 | 26 | 0 | 60 mm | Good | Folkestone in September |
| October | 15° / 12° | 7 | 24 | 0 | 111 mm | Ok | Folkestone in October |
| November | 11° / 9° | 9 | 21 | 0 | 115 mm | Bad | Folkestone in November |
| December | 9° / 6° | 8 | 21 | 2 | 112 mm | Awful | Folkestone in December |