Click on a day for an hourly weather forecast
The temperatures in Guildford 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 Guildford 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 Guildford in September 2025.
If you’re planning to visit Guildford in the near future, we highly recommend that you review the 14 day weather forecast for Guildford before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 3° | 8 | 20 | 4 | 78 mm | Awful | Guildford in January |
| February | 8° / 3° | 8 | 16 | 4 | 68 mm | Awful | Guildford in February |
| March | 11° / 4° | 4 | 25 | 1 | 53 mm | Ok | Guildford in March |
| April | 14° / 5° | 4 | 25 | 1 | 41 mm | Good | Guildford in April |
| May | 16° / 8° | 5 | 27 | 0 | 59 mm | Good | Guildford in May |
| June | 19° / 11° | 4 | 26 | 0 | 70 mm | Good | Guildford in June |
| July | 22° / 13° | 5 | 26 | 0 | 65 mm | Good | Guildford in July |
| August | 21° / 14° | 4 | 27 | 0 | 67 mm | Good | Guildford in August |
| September | 19° / 12° | 3 | 27 | 0 | 46 mm | Good | Guildford in September |
| October | 15° / 10° | 6 | 25 | 0 | 82 mm | Good | Guildford in October |
| November | 11° / 6° | 7 | 23 | 0 | 81 mm | Bad | Guildford in November |
| December | 8° / 4° | 7 | 21 | 3 | 88 mm | Awful | Guildford in December |