Click on a day for an hourly weather forecast
The temperatures in Peterborough in September are comfortable with low of 12°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Peterborough 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 Peterborough in September 2025.
If you’re planning to visit Peterborough in the near future, we highly recommend that you review the 14 day weather forecast for Peterborough before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -5° / -11° | 5 | 7 | 20 | 80 mm | Awful | Peterborough in January |
| February | -4° / -10° | 4 | 5 | 18 | 69 mm | Awful | Peterborough in February |
| March | 2° / -5° | 6 | 12 | 12 | 72 mm | Awful | Peterborough in March |
| April | 9° / 1° | 8 | 17 | 5 | 113 mm | Awful | Peterborough in April |
| May | 17° / 7° | 6 | 24 | 1 | 107 mm | Good | Peterborough in May |
| June | 21° / 12° | 7 | 23 | 0 | 125 mm | Ok | Peterborough in June |
| July | 25° / 15° | 7 | 25 | 0 | 125 mm | Good | Peterborough in July |
| August | 25° / 15° | 6 | 25 | 0 | 132 mm | Perfect | Peterborough in August |
| September | 21° / 12° | 6 | 24 | 0 | 96 mm | Good | Peterborough in September |
| October | 13° / 6° | 9 | 21 | 1 | 125 mm | Bad | Peterborough in October |
| November | 6° / 0° | 7 | 14 | 9 | 85 mm | Awful | Peterborough in November |
| December | -1° / -5° | 7 | 8 | 17 | 89 mm | Awful | Peterborough in December |