Click on a day for an hourly weather forecast
The temperatures in Norwich 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 Norwich 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 Norwich in September 2025.
If you’re planning to visit Norwich in the near future, we highly recommend that you review the 14 day weather forecast for Norwich before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 3° | 8 | 19 | 4 | 56 mm | Awful | Norwich in January |
| February | 7° / 3° | 8 | 15 | 5 | 56 mm | Awful | Norwich in February |
| March | 9° / 4° | 7 | 23 | 2 | 52 mm | Awful | Norwich in March |
| April | 12° / 6° | 4 | 26 | 1 | 34 mm | Ok | Norwich in April |
| May | 15° / 8° | 4 | 27 | 0 | 54 mm | Good | Norwich in May |
| June | 17° / 11° | 4 | 26 | 0 | 65 mm | Good | Norwich in June |
| July | 20° / 14° | 5 | 26 | 0 | 76 mm | Good | Norwich in July |
| August | 20° / 15° | 4 | 27 | 0 | 66 mm | Good | Norwich in August |
| September | 18° / 13° | 4 | 26 | 0 | 50 mm | Good | Norwich in September |
| October | 14° / 10° | 5 | 26 | 0 | 71 mm | Good | Norwich in October |
| November | 10° / 7° | 6 | 24 | 1 | 59 mm | Ok | Norwich in November |
| December | 8° / 4° | 8 | 20 | 3 | 71 mm | Awful | Norwich in December |