Click on a day for an hourly weather forecast
The temperatures in Campbellton in September are quite cold with temperatures between 9°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Campbellton 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 Campbellton in September 2025.
If you’re planning to visit Campbellton in the near future, we highly recommend that you review the 14 day weather forecast for Campbellton before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -7° / -15° | 9 | 16 | 6 | 30 mm | Awful | Campbellton in January |
| February | -6° / -14° | 9 | 13 | 7 | 27 mm | Awful | Campbellton in February |
| March | -2° / -9° | 8 | 16 | 7 | 30 mm | Awful | Campbellton in March |
| April | 5° / -2° | 7 | 18 | 5 | 35 mm | Awful | Campbellton in April |
| May | 13° / 5° | 7 | 24 | 0 | 39 mm | Ok | Campbellton in May |
| June | 19° / 10° | 8 | 22 | 0 | 37 mm | Good | Campbellton in June |
| July | 23° / 14° | 8 | 23 | 0 | 44 mm | Perfect | Campbellton in July |
| August | 22° / 14° | 7 | 24 | 0 | 36 mm | Good | Campbellton in August |
| September | 17° / 9° | 6 | 24 | 0 | 43 mm | Good | Campbellton in September |
| October | 10° / 4° | 6 | 24 | 0 | 40 mm | Ok | Campbellton in October |
| November | 3° / -3° | 7 | 19 | 3 | 39 mm | Awful | Campbellton in November |
| December | -3° / -9° | 11 | 14 | 7 | 43 mm | Awful | Campbellton in December |