September weather forecastLuna Pier, MI
September
Weather in September
September, the first month of the autumn in Luna Pier, is still a pleasant month, with an average temperature fluctuating between 72.5°F (22.5°C) and 57°F (13.9°C).Temperature
Luna Pier in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 78.4°F (25.8°C) in August to an agreeable 72.5°F (22.5°C). The average low-temperature, in September, is a refreshing 57°F (13.9°C).Humidity
The average relative humidity in September is 78%.Rainfall
In September, the rain falls for 11.7 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In Luna Pier, during the entire year, the rain falls for 134 days and collects up to 15.08" (383mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
In September, the average ocean temperature is 71.2°F (21.8°C).Note: Swimming in water at 71.2°F (21.8°C) is not a pleasing experience for the majority. As the temperature descends from 69.8°F (21°C) to 59°F (15°C), controlling breathing becomes increasingly hard.
Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 7:00 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:16 pm EDT.
Sunshine
In Luna Pier, the average sunshine in September is 8.2h.UV index
In Luna Pier, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 4 in September transforms into this advice:
Undertake protective steps - Preventing sun damage is advised. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Luna Pier, MI
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in September
Luna Pier, MI
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Luna Pier, MI
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Luna Pier, MI
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Luna Pier, MI
- Average rainfall in September: 0.87"
The wettest months (with the highest rainfall) are May and June (1.97").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days in September
Luna Pier, MI
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Luna Pier, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Luna Pier, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Luna Pier, MI
- Average sea temperature in September: 71.2°F
The best month for swimming (with the highest average sea temperature) is August (76.4°F).
The coldest month (with the lowest average sea temperature) is February (32.6°F).
Average daylight in September /
Average sunshine in September
Luna Pier, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Luna Pier, MI
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
Luna Pier, MI
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Luna Pier, MI
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in September
Luna Pier, MI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





