September weather forecastBlue Water Beach, MI
September
Weather in September
September, the first month of the autumn in Blue Water Beach, is also an agreeable month, with an average temperature ranging between max 68.9°F (20.5°C) and min 56.1°F (13.4°C).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a warm 75.2°F (24°C) in August to an agreeable 68.9°F (20.5°C). During the nights in September, an average low-temperature of 56.1°F (13.4°C) is observed.Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 13.2 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 155.3 rainfall days, and 24.8" (630mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Blue Water Beach.Daylight
In September, the average length of the day in Blue Water Beach is 12h and 29min.On the first day of the month, sunrise is at 6:55 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:27 am and sunset at 7:12 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Act with care - The need to guard against sun damage is communicated. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Blue Water Beach, MI
- Average high temperature in September: 68.9°F
The warmest months (with the highest average high temperature) are July and August (75.2°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Blue Water Beach, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Blue Water Beach, MI
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Blue Water Beach, MI
- Average humidity in September: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May, October and November (78%).
Average rainfall in September
Blue Water Beach, MI
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is December (1.46").
Average rainfall days in September
Blue Water Beach, MI
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is October (17 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Blue Water Beach, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.9").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Blue Water Beach, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Blue Water Beach, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Blue Water Beach, MI
- Average sunshine days in September: 13.4 days
The months with the most sunshine days are July and September (13.4 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in September
Blue Water Beach, 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 and December (UV index 1).
Average cloud cover in September
Blue Water Beach, MI
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Blue Water Beach, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





