Click on a day for an hourly weather forecast
The temperatures in Shoreham-by-Sea 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 Shoreham-by-Sea 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 Shoreham-by-Sea in September 2025.
If you’re planning to visit Shoreham-by-Sea in the near future, we highly recommend that you review the 14 day weather forecast for Shoreham-by-Sea before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 4° | 8 | 21 | 2 | 83 mm | Awful | Shoreham-by-Sea in January |
| February | 8° / 4° | 8 | 17 | 3 | 66 mm | Awful | Shoreham-by-Sea in February |
| March | 10° / 5° | 5 | 26 | 1 | 51 mm | Ok | Shoreham-by-Sea in March |
| April | 12° / 7° | 3 | 27 | 0 | 41 mm | Ok | Shoreham-by-Sea in April |
| May | 15° / 9° | 4 | 27 | 0 | 55 mm | Good | Shoreham-by-Sea in May |
| June | 18° / 12° | 4 | 26 | 0 | 70 mm | Good | Shoreham-by-Sea in June |
| July | 20° / 14° | 4 | 27 | 0 | 59 mm | Good | Shoreham-by-Sea in July |
| August | 20° / 15° | 4 | 27 | 0 | 63 mm | Good | Shoreham-by-Sea in August |
| September | 18° / 13° | 4 | 26 | 0 | 56 mm | Good | Shoreham-by-Sea in September |
| October | 15° / 11° | 6 | 25 | 0 | 93 mm | Good | Shoreham-by-Sea in October |
| November | 11° / 8° | 7 | 23 | 0 | 99 mm | Bad | Shoreham-by-Sea in November |
| December | 9° / 6° | 8 | 22 | 1 | 97 mm | Bad | Shoreham-by-Sea in December |