Rocky River Weather in September

What's the weather like in Rocky River (Ohio) in September 2025?

The climate in Rocky River during September can be summarized as mild and a little damp.

September is in the fall / autumn in Rocky River and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 12°C (54°F) is normal.

Rocky River weather averages (imperial / metric)
Daytime temperature 23.3°C 73.9°F
Nightly temperature 12°C 53.5°F
Average temperature 17.6°C 63.7°F
Daily sunshine 7.7 hrs
Avg rainfall 87 mm 3.4 ins
Rainy days 10 days
Sea temperature 20.9°C 69.7°F
Humidity 74%
Windspeed 14kph 9 mph

On average September is the 4th wettest month of the year in Rocky River with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.7 hours of sunshine per day.

September temperatures in Rocky River

Rocky River average temperature in September

September rainfall

Rocky River average rain in September

September hourly sunshine

Rocky River 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 Rocky River 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

Rocky River weather stats

Rocky River weather statistics
Hottest month: July 27.9°C 82.2°F
Driest month: January 52mm 2ins
Sunniest month: July 10.4hrs
Coldest month: January -0.4°C 31.3°F
Wettest month: June 94mm 3.7ins
Map showing location of Rocky River (41.4756, -81.8393) Rocky River map pin © Google

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