Click on a day for an hourly weather forecast
The temperatures in Hemel Hempstead in September are usually low and can range between 11°C and 19°C.
You can expect about 3 to 8 days of rain in Hemel Hempstead 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 Hemel Hempstead in September 2024.
If you’re planning to visit Hemel Hempstead in the near future, we highly recommend that you review the 14 day weather forecast for Hemel Hempstead before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 2° | 7 | 20 | 4 | 61 mm | Awful | Hemel Hempstead in January |
| February | 7° / 2° | 8 | 16 | 5 | 63 mm | Awful | Hemel Hempstead in February |
| March | 10° / 3° | 4 | 25 | 2 | 52 mm | Bad | Hemel Hempstead in March |
| April | 14° / 5° | 4 | 25 | 1 | 47 mm | Good | Hemel Hempstead in April |
| May | 16° / 8° | 5 | 26 | 0 | 71 mm | Good | Hemel Hempstead in May |
| June | 19° / 11° | 5 | 25 | 0 | 95 mm | Good | Hemel Hempstead in June |
| July | 22° / 13° | 5 | 26 | 0 | 79 mm | Good | Hemel Hempstead in July |
| August | 21° / 14° | 5 | 26 | 0 | 78 mm | Good | Hemel Hempstead in August |
| September | 19° / 11° | 3 | 27 | 0 | 43 mm | Good | Hemel Hempstead in September |
| October | 15° / 9° | 6 | 25 | 0 | 66 mm | Good | Hemel Hempstead in October |
| November | 10° / 6° | 6 | 24 | 0 | 61 mm | Ok | Hemel Hempstead in November |
| December | 7° / 3° | 7 | 21 | 2 | 71 mm | Awful | Hemel Hempstead in December |