Climate averages 1991–2020
Vancouver weather
in September.
A mild, wet month: the 3rd warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Vancouver: daytime highs average 18.6°C and nights cool to about 11.9°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 125 mm of rain on roughly 10 days, which makes September a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 39 min on an average September day.
The nearest other city in this atlas is North Vancouver (8 km away). In September its highs average 18.8°C, about as warm as Vancouver, with 125 mm of rain.
Among the 86 cities listed in Canada, Vancouver ranks joint 68th of 86 for the warmest September highs and joint 80th of 86 for the driest September (rainfall, lowest first). The mean September high of those 86 cities is 19.8°C; Vancouver is 1.2°C cooler than that mean.
From September to October, average highs fall by 5.7°C to 12.9°C, and monthly rainfall rises from 125 mm to 246 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Vancouver climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.4°C1.1°C | 1.1°C | 316 | 19.0 | 8.79 h |
| February | 6.9°C1.3°C | 1.3°C | 191 | 15.6 | 10.110 h |
| March | 8.9°C2.7°C | 2.7°C | 252 | 19.2 | 11.912 h |
| April | 11.9°C5.0°C | 5.0°C | 175 | 16.9 | 13.714 h |
| May | 15.8°C8.4°C | 8.4°C | 117 | 12.5 | 15.315 h |
| June | 18.2°C11.3°C | 11.3°C | 94 | 11.5 | 16.216 h |
| July | 21.6°C14.0°C | 14.0°C | 53 | 6.6 | 15.816 h |
| August | 21.8°C14.4°C | 14.4°C | 73 | 7.4 | 14.414 h |
| September, selected | 18.6°C11.9°C | 11.9°C | 125 | 10.2 | 12.713 h |
| October | 12.9°C7.7°C | 7.7°C | 246 | 16.3 | 10.811 h |
| November | 8.0°C3.8°C | 3.8°C | 349 | 19.9 | 9.29 h |
| December | 5.1°C1.3°C | 1.3°C | 307 | 19.4 | 8.38 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- North Vancouver in SeptemberCanada · 8 kmHigh 18.8°C · Low 12.1°C · 125 mm rain
- Burnaby in SeptemberCanada · 12 kmHigh 19.1°C · Low 11.8°C · 125 mm rain
- New Westminster in SeptemberCanada · 16 kmHigh 19.3°C · Low 10.7°C · 125 mm rain
- Delta in SeptemberCanada · 18 kmHigh 19.6°C · Low 12.0°C · 72 mm rain
- Coquitlam in SeptemberCanada · 25 kmHigh 20.0°C · Low 11.7°C · 142 mm rain
- Surrey in SeptemberCanada · 27 kmHigh 19.6°C · Low 10.7°C · 86 mm rain
- Langley in SeptemberCanada · 37 kmHigh 20.1°C · Low 10.9°C · 86 mm rain
- Maple Ridge in SeptemberCanada · 38 kmHigh 20.0°C · Low 10.9°C · 173 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Vancouver) is explained once on the Vancouver year overview and on the Sources, method and limits page.
Burnaby, North Vancouver and New Westminster lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.