Grand Rapids Weather in September

What's the weather like in Grand Rapids (Michigan) in September 2024?

The climate in Grand Rapids during September can be summarized as mild and a little damp.

September is in the fall / autumn in Grand Rapids and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (72°F), whilst at night 10°C (50°F) is normal.

Grand Rapids weather averages (imperial / metric)
Daytime temperature 22.5°C 72.4°F
Nightly temperature 10.2°C 50.3°F
Average temperature 16.3°C 61.3°F
Daily sunshine 7.5 hrs
Avg rainfall 98 mm 3.8 ins
Rainy days 10 days
Sea temperature 19.5°C 67.1°F
Humidity 76%
Windspeed 14.8kph 9 mph

On average September is the wettest month of the year in Grand Rapids with around 98mm 3.8 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 7.5 hours of sunshine per day.

September temperatures in Grand Rapids

Grand Rapids average temperature in September

September rainfall

Grand Rapids average rain in September

September hourly sunshine

Grand Rapids 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 Grand Rapids in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Grand Rapids weather stats

Grand Rapids weather statistics
Hottest month: July 27.6°C 81.7°F
Driest month: February 39mm 1.5ins
Sunniest month: July 10.5hrs
Coldest month: January -1.6°C 29.1°F
Wettest month: September 98mm 3.9ins
Map showing location of Grand Rapids (42.96336, -85.66809) Grand Rapids map pin © Google

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