Click on a day for an hourly weather forecast
The temperatures in Basildon in September are usually low and can range between 12°C and 19°C.
You can expect about 3 to 8 days of rain in Basildon 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 Basildon in September 2025.
If you’re planning to visit Basildon in the near future, we highly recommend that you review the 14 day weather forecast for Basildon before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 2° | 7 | 20 | 4 | 62 mm | Awful | Basildon in January |
| February | 8° / 3° | 8 | 16 | 5 | 64 mm | Awful | Basildon in February |
| March | 10° / 4° | 5 | 23 | 2 | 53 mm | Bad | Basildon in March |
| April | 13° / 5° | 4 | 26 | 1 | 45 mm | Ok | Basildon in April |
| May | 16° / 8° | 4 | 27 | 0 | 63 mm | Good | Basildon in May |
| June | 19° / 11° | 5 | 25 | 0 | 83 mm | Good | Basildon in June |
| July | 22° / 14° | 5 | 26 | 0 | 69 mm | Good | Basildon in July |
| August | 22° / 14° | 4 | 27 | 0 | 67 mm | Good | Basildon in August |
| September | 19° / 12° | 3 | 27 | 0 | 41 mm | Good | Basildon in September |
| October | 15° / 10° | 6 | 25 | 0 | 70 mm | Good | Basildon in October |
| November | 10° / 6° | 6 | 24 | 0 | 56 mm | Ok | Basildon in November |
| December | 8° / 4° | 7 | 22 | 2 | 68 mm | Awful | Basildon in December |