Click on a day for an hourly weather forecast
The temperatures in Surrey 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 Surrey 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 Surrey in September 2025.
If you’re planning to visit Surrey in the near future, we highly recommend that you review the 14 day weather forecast for Surrey before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 3° | 14 | 15 | 3 | 303 mm | Awful | Surrey in January |
| February | 7° / 2° | 11 | 13 | 4 | 209 mm | Awful | Surrey in February |
| March | 9° / 4° | 14 | 16 | 2 | 269 mm | Awful | Surrey in March |
| April | 12° / 6° | 9 | 20 | 0 | 162 mm | Bad | Surrey in April |
| May | 16° / 9° | 6 | 25 | 0 | 104 mm | Good | Surrey in May |
| June | 19° / 11° | 4 | 26 | 0 | 74 mm | Good | Surrey in June |
| July | 22° / 13° | 2 | 29 | 0 | 33 mm | Good | Surrey in July |
| August | 22° / 14° | 2 | 29 | 0 | 51 mm | Good | Surrey in August |
| September | 19° / 12° | 7 | 23 | 0 | 144 mm | Ok | Surrey in September |
| October | 14° / 8° | 11 | 20 | 0 | 263 mm | Ok | Surrey in October |
| November | 9° / 5° | 14 | 16 | 1 | 361 mm | Bad | Surrey in November |
| December | 6° / 2° | 13 | 14 | 3 | 278 mm | Awful | Surrey in December |