Oro Valley Weather in September

What's the weather like in Oro Valley (Arizona) in September 2025?

The climate in Oro Valley during September can be summarized as hot and reasonably dry.

September is in the fall / autumn in Oro Valley and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 32°C (89°F), whilst at night 18°C (64°F) is normal.

Oro Valley weather averages (imperial / metric)
Daytime temperature 31.5°C 88.6°F
Nightly temperature 17.8°C 64°F
Average temperature 24.6°C 76.3°F
Daily sunshine 11.1 hrs
Avg rainfall 43 mm 1.7 ins
Rainy days 6 days
Sea temperature 24.1°C 75.3°F
Humidity 45%
Windspeed 13.3kph 8 mph

On average September is the 4th wettest month of the year in Oro Valley with around 43mm 1.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.1 hours of sunshine per day.

September temperatures in Oro Valley

Oro Valley average temperature in September

September rainfall

Oro Valley average rain in September

September hourly sunshine

Oro Valley 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 Oro Valley 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

Oro Valley weather stats

Oro Valley weather statistics
Hottest month: July 34.8°C 94.6°F
Driest month: May 7mm 0.3ins
Sunniest month: May 13.5hrs
Coldest month: January 15.4°C 59.7°F
Wettest month: August 73mm 2.9ins
Map showing location of Oro Valley (32.39091, -110.96649) Oro Valley map pin © Google

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