McMinnville Weather in September

What's the weather like in McMinnville (Oregon) in September 2025?

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

September is in the fall / autumn in McMinnville and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 8°C (46°F) is normal.

McMinnville weather averages (imperial / metric)
Daytime temperature 23.4°C 74.1°F
Nightly temperature 7.6°C 45.7°F
Average temperature 15.5°C 59.9°F
Daily sunshine 8.6 hrs
Avg rainfall 46 mm 1.8 ins
Rainy days 8 days
Sea temperature 14.6°C 58.3°F
Humidity 72%
Windspeed 11.5kph 7 mph

On average September is the 4th driest month of the year in McMinnville with around 46mm 1.8 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 McMinnville

McMinnville average temperature in September

September rainfall

McMinnville average rain in September

September hourly sunshine

McMinnville 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 McMinnville 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

McMinnville weather stats

McMinnville weather statistics
Hottest month: August 25.9°C 78.6°F
Driest month: July 15mm 0.6ins
Sunniest month: July 11.3hrs
Coldest month: January 7.3°C 45.1°F
Wettest month: December 224mm 8.8ins
Map showing location of McMinnville (45.21012, -123.19872) McMinnville map pin © Google

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