September weather forecastBay Shore, MI
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Bay Shore, Michigan, with an average temperature varying between 53.6°F (12°C) and 66.2°F (19°C).Temperature
The average high-temperature shows a slight dip in September, from August's agreeable 72.5°F (22.5°C) to an enjoyable 66.2°F (19°C). In Bay Shore, September is marked by an average low-temperature of 53.6°F (12°C).Humidity
The average relative humidity in September is 78%.Rainfall
In Bay Shore, during September, the rain falls for 13 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Bay Shore, Michigan, during the entire year, the rain falls for 140.7 days and collects up to 27.6" (701mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 7:02 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:22 pm EDT.
Sunshine
The average sunshine in September is 7.7h.UV index
In Bay Shore, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 3 suggests this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bay Shore, MI
- Average high temperature in September: 66.2°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is August (59.2°F).
The coldest month (with the lowest average low temperature) is February (16.5°F).
Average pressure in September
Bay Shore, MI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Bay Shore, MI
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is December (11.4mph).
The calmest months (with the lowest average wind speed) are June and July (7.5mph).
Average humidity in September
Bay Shore, MI
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (74%).
Average rainfall in September
Bay Shore, MI
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in September
Bay Shore, MI
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is October (18.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Bay Shore, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (9.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bay Shore, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bay Shore, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 1h and 18min).
Average sunshine days in September
Bay Shore, MI
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is September (14.9 days).
The months with the least sunshine days are January and February (5.5 days).
Average UV index in September
Bay Shore, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Bay Shore, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Bay Shore, MI
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





