Wenatchee Weather in September

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

The climate in Wenatchee during September can be summarized as mild and very dry.

September is in the fall / autumn in Wenatchee and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 24°C (75°F), whilst at night 9°C (48°F) is normal.

Wenatchee weather averages (imperial / metric)
Daytime temperature 23.6°C 74.5°F
Nightly temperature 8.8°C 47.8°F
Average temperature 16.2°C 61.2°F
Daily sunshine 8.2 hrs
Avg rainfall 10 mm 0.4 ins
Rainy days 5 days
Sea temperature 12.5°C 54.6°F
Humidity 59%
Windspeed 11.2kph 7 mph

On average September is the 2nd driest month of the year in Wenatchee with around 10mm 0.4 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 8.2 hours of sunshine per day.

September temperatures in Wenatchee

Wenatchee average temperature in September

September rainfall

Wenatchee average rain in September

September hourly sunshine

Wenatchee 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 Wenatchee 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

Wenatchee weather stats

Wenatchee weather statistics
Hottest month: July 28.8°C 83.8°F
Driest month: July 7mm 0.3ins
Sunniest month: July 11.1hrs
Coldest month: January -0.2°C 31.6°F
Wettest month: December 46mm 1.8ins
Map showing location of Wenatchee (47.42346, -120.31035) Wenatchee map pin © Google

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