September weather forecastPort Austin, MI
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Port Austin, Michigan, with an average temperature ranging between min 59.5°F (15.3°C) and max 66.4°F (19.1°C).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's agreeable 72°F (22.2°C) to a refreshing 66.4°F (19.1°C). Night temperatures in September exhibit a subtle decrease, settling at an average of 59.5°F (15.3°C).Humidity
The months with the lowest humidity are September through November, with an average relative humidity of 77%.Rainfall
In Port Austin, in September, it is raining for 12.4 days, with typically 1.69" (43mm) of accumulated precipitation. In Port Austin, Michigan, during the entire year, the rain falls for 135.6 days and collects up to 21.18" (538mm) of precipitation.Snowfall
In Port Austin, snow does not fall in May through October.Daylight
In Port Austin, the average length of the day in September is 12h and 30min.On the first day of September in Port Austin, sunrise is at 6:56 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:14 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In Port Austin, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Port Austin, MI
- Average high temperature in September: 66.4°F
The warmest month (with the highest average high temperature) is August (72°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Port Austin, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Port Austin, MI
- Average wind speed in September: 11.7mph
The windiest month (with the highest average wind speed) is December (15.9mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in September
Port Austin, MI
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are September, October and November (77%).
Average rainfall in September
Port Austin, MI
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in September
Port Austin, MI
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is August (16.1 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in September
Port Austin, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Port Austin, 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 June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Port Austin, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
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 42min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in September
Port Austin, MI
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is June (14.9 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Port Austin, MI
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Port Austin, MI
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Port Austin, 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).
