Click on a day for an hourly weather forecast
The temperatures in British Columbia in September are quite cold with temperatures between 9°C and 17°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in British Columbia. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in British Columbia in September 2025.
If you’re planning to visit British Columbia in the near future, we highly recommend that you review the 14 day weather forecast for British Columbia before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / -1° | 15 | 13 | 4 | 468 mm | Awful | British Columbia in January |
| February | 5° / -2° | 12 | 10 | 6 | 317 mm | Awful | British Columbia in February |
| March | 7° / 0° | 17 | 11 | 4 | 422 mm | Awful | British Columbia in March |
| April | 10° / 3° | 13 | 17 | 1 | 269 mm | Bad | British Columbia in April |
| May | 15° / 6° | 8 | 23 | 0 | 163 mm | Ok | British Columbia in May |
| June | 17° / 8° | 7 | 23 | 0 | 135 mm | Ok | British Columbia in June |
| July | 20° / 10° | 4 | 27 | 0 | 67 mm | Good | British Columbia in July |
| August | 20° / 11° | 4 | 27 | 0 | 96 mm | Good | British Columbia in August |
| September | 17° / 9° | 9 | 21 | 0 | 232 mm | Ok | British Columbia in September |
| October | 12° / 5° | 12 | 19 | 0 | 387 mm | Bad | British Columbia in October |
| November | 7° / 1° | 16 | 13 | 1 | 556 mm | Bad | British Columbia in November |
| December | 4° / -2° | 15 | 11 | 5 | 419 mm | Awful | British Columbia in December |
For a more accurate weather forecast please select a city