Vancouver Weather in September

What's the weather like in Vancouver (Washington) in September 2025?

The climate in Vancouver during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Vancouver and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (74°F), whilst at night 10°C (49°F) is normal.

Vancouver weather averages (imperial / metric)
Daytime temperature 23.1°C 73.6°F
Nightly temperature 9.5°C 49.1°F
Average temperature 16.3°C 61.3°F
Daily sunshine 8.6 hrs
Avg rainfall 55 mm 2.2 ins
Rainy days 8 days
Sea temperature 13.3°C 55.9°F
Humidity 69%
Windspeed 11.5kph 7 mph

On average September is the 4th driest month of the year in Vancouver with around 55mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.6 hours of sunshine per day.

September temperatures in Vancouver

Vancouver average temperature in September

September rainfall

Vancouver average rain in September

September hourly sunshine

Vancouver average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Vancouver in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Vancouver weather stats

Vancouver weather statistics
Hottest month: August 25.8°C 78.4°F
Driest month: July 21mm 0.8ins
Sunniest month: July 11.6hrs
Coldest month: January 7°C 44.6°F
Wettest month: December 186mm 7.3ins
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