Bay City Weather in September

What's the weather like in Bay City (Michigan) in September 2024?

The climate in Bay City during September can be summarized as mild and a little damp.

September is in the fall / autumn in Bay City and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 21°C (71°F), whilst at night 10°C (51°F) is normal.

Bay City weather averages (imperial / metric)
Daytime temperature 21.4°C 70.5°F
Nightly temperature 10.4°C 50.7°F
Average temperature 15.9°C 60.6°F
Daily sunshine 7.3 hrs
Avg rainfall 88 mm 3.5 ins
Rainy days 11 days
Sea temperature 19.2°C 66.6°F
Humidity 77%
Windspeed 13.7kph 9 mph

On average September is the wettest month of the year in Bay City with around 88mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.3 hours of sunshine per day.

September temperatures in Bay City

Bay City average temperature in September

September rainfall

Bay City average rain in September

September hourly sunshine

Bay City 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 Bay City 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

Bay City weather stats

Bay City weather statistics
Hottest month: July 27.1°C 80.8°F
Driest month: February 34mm 1.3ins
Sunniest month: July 10.8hrs
Coldest month: January -2.7°C 27.1°F
Wettest month: September 88mm 3.5ins
Map showing location of Bay City (43.59447, -83.88886) Bay City map pin © Google

Locations nearby

Top United States locations