Click on a day for an hourly weather forecast
The temperatures in Bognor Regis in September are usually low and can range between 13°C and 18°C.
You can expect about 3 to 8 days of rain in Bognor Regis 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 Bognor Regis in September 2025.
If you’re planning to visit Bognor Regis in the near future, we highly recommend that you review the 14 day weather forecast for Bognor Regis before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 4° | 9 | 20 | 3 | 107 mm | Awful | Bognor Regis in January |
| February | 8° / 4° | 9 | 16 | 4 | 88 mm | Awful | Bognor Regis in February |
| March | 10° / 5° | 6 | 25 | 1 | 67 mm | Ok | Bognor Regis in March |
| April | 12° / 6° | 4 | 26 | 0 | 50 mm | Ok | Bognor Regis in April |
| May | 15° / 9° | 5 | 26 | 0 | 67 mm | Good | Bognor Regis in May |
| June | 18° / 12° | 4 | 26 | 0 | 88 mm | Good | Bognor Regis in June |
| July | 20° / 14° | 5 | 26 | 0 | 75 mm | Good | Bognor Regis in July |
| August | 20° / 14° | 4 | 27 | 0 | 77 mm | Good | Bognor Regis in August |
| September | 18° / 13° | 4 | 26 | 0 | 66 mm | Good | Bognor Regis in September |
| October | 15° / 11° | 7 | 24 | 0 | 119 mm | Ok | Bognor Regis in October |
| November | 11° / 8° | 9 | 21 | 0 | 123 mm | Bad | Bognor Regis in November |
| December | 9° / 6° | 9 | 20 | 2 | 125 mm | Awful | Bognor Regis in December |