Click on a day for an hourly weather forecast
The temperatures in Bournemouth 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 Bournemouth 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 Bournemouth in September 2025.
If you’re planning to visit Bournemouth in the near future, we highly recommend that you review the 14 day weather forecast for Bournemouth before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 4° | 7 | 22 | 2 | 79 mm | Awful | Bournemouth in January |
| February | 8° / 4° | 7 | 18 | 3 | 70 mm | Awful | Bournemouth in February |
| March | 10° / 5° | 5 | 26 | 0 | 53 mm | Ok | Bournemouth in March |
| April | 12° / 6° | 4 | 26 | 0 | 46 mm | Ok | Bournemouth in April |
| May | 15° / 9° | 5 | 27 | 0 | 51 mm | Good | Bournemouth in May |
| June | 17° / 12° | 4 | 26 | 0 | 62 mm | Good | Bournemouth in June |
| July | 19° / 14° | 3 | 28 | 0 | 58 mm | Good | Bournemouth in July |
| August | 19° / 14° | 5 | 26 | 0 | 69 mm | Good | Bournemouth in August |
| September | 18° / 13° | 4 | 26 | 0 | 51 mm | Good | Bournemouth in September |
| October | 15° / 11° | 7 | 24 | 0 | 108 mm | Ok | Bournemouth in October |
| November | 11° / 8° | 6 | 24 | 0 | 101 mm | Ok | Bournemouth in November |
| December | 9° / 6° | 7 | 23 | 1 | 88 mm | Bad | Bournemouth in December |