Weather in Michigan, United States in September

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Visiting Michigan, United States in September

September is one of the best months to visit Michigan for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in September is cooler than the previous month and temperatures continue to drop markedly into October. September has average maximum temperatures of 21°C (69°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day.

September has total rainfall of 8.4cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 10.6 days with some rainfall so you can still enjoy the beach on the majority of days.

Sea temperatures are a cold 16°C (61°F). September is too cold for swimming in Michigan for any length of time, unless you have a wetsuit. The sea temperature in September is cooler than the previous month and temperatures continue to drop into October.

Also consider visiting Michigan in one of the other best months of June, July, August, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Michigan in September?

Yes, September is a good time for sunbathing in Michigan.

September has average maximum temperatures of 21°C (69°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day. September has total rainfall of 8.4cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 10.6 days with some rainfall so you can still enjoy the beach on the majority of days.

More about September temperature and sunshine.

Can you swim in Michigan in September?

No, September is too cold for swimming in Michigan for any length of time, with the sea water at 16°C (61°F), unless you have a wetsuit.

More about September sea temperatures.

Is September a good time to holiday in Michigan?

Yes, September is a good time for a holiday in Michigan.

September has average maximum temperatures of 21°C (69°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day. September has total rainfall of 8.4cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 10.6 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a cold 16°C (61°F). September is too cold for swimming in Michigan for any length of time, unless you have a wetsuit.

More about the September temperatures and sunshine.

Is Michigan warm in September?

Yes, Michigan is nice and warm and makes sunbathing pleasant on clear days in September.

The average maximum temperature in Michigan in September is 21°C (69°F). The average maximum temperature is 24°C (76°) in the previous month and 13°C (56°F) in the next month.

The average temperature in Michigan in September is 16°C (61°F). The average temperature is 20°C (67°F) in the previous month and 9°C (49°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Michigan in September?

The average day light hours per day in Michigan in September are 12.6. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day.

More about September sunshine.

Temperature in Michigan in September

The weather in September is cooler than the previous month and temperatures continue to drop markedly into October. The average maximum temperature in Michigan in September is 21°C (69°F). The average maximum temperature is 24°C (76°F) in the previous month and 13°C (56°F) in the next month.

The average temperature in Michigan in September is 16°C (61°F). The average temperature is 20°C (67°F) in the previous month and 9°C (49°F) in the next month.

The average minimum temperature in Michigan in September is 12°C (53°F). The minimum temperature is 15°C (60°F) in the previous month and 6°C (43°F) in the next month.

Sunshine in Michigan in September

The days in September are shorter than the previous month and days continue to get shorter into October. September shows a significant drop in hours of sunshine than the previous month and hours of sunshine continue to drop quickly into October. During September the average day light hours are 12.6 per day in Michigan. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.8 hours of sunshine per day.

The ultraviolet index in Michigan in September is typically 5.6 during September. An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Michigan in September

The average sea water temperature in Michigan in September is 16°C (60.8°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water. The sea temperature in September is cooler than the previous month and temperatures continue to drop into October.

Rainfall in Michigan in September

September weather is slightly drier than the previous month. September has a couple of more days of rain than the previous month and rainy days continue to rise slightly into October. The average total rainfall in Michigan in September is 8.4cm (3.3inches) and on average there are 10.6 rainy days in September making it a pretty wet time to visit the beach.

Humidity in Michigan in September

The maximum dew point (an indicator of humidity) in Michigan in September is 14°C (57°F) which is comfortable for everyone. The dew point is 17°C (63°F) in the previous month and 8°C (8°F) in the next month.

The average maximum relative humidity in Michigan in September is typically 91.6%. The maximum relative humidity is 91.5% in the previous month and 90.6% in the next month.

The average relative humidity in Michigan in September is typically 74.3%. The average relative humidity is 73.3% in the previous month and 75.9% in the next month.

Wind Speed in Michigan in September

The average maximum wind speed in Michigan in September is typically 24KM/H (15MPH). The average maximum wind speed is 23KM/H (14MPH) in the previous month and 27KM/H (17MPH) in the next month.

The average wind speed in Michigan in September is typically 12KM/H (7MPH). The average wind speed is 10KM/H (6MPH) in the previous month and 15KM/H (9MPH) in the next month.

The average wind direction in Michigan in September is from the South-Southwest.

Monthly Averages

Suggested Beaches in September

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