September weather forecastMichigan City, MS
September
Weather in September
September, the first month of the autumn in Michigan City, is still a warm month, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 83.5°F (28.6°C).Temperature
The shift to September signals an average high-temperature of a moderately hot 83.5°F (28.6°C), subtly varied from August's 88.3°F (31.3°C). During September, Michigan City sees a mean low-temperature of 64.4°F (18°C).Heat index
September's heat index is computed to be a hot 89.6°F (32°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In Michigan City, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 2.2" (56mm) of precipitation.Snowfall
In Michigan City, Mississippi, snow does not fall in April through October.Daylight
In September, the average length of the day in Michigan City is 12h and 23min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:41 pm CDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Michigan City, MS
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 64.4°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Michigan City, MS
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Michigan City, MS
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in September
Michigan City, MS
- Average humidity in September: 73%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Michigan City, MS
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is February (4.61").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in September
Michigan City, MS
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is October (10 days).
Average snowfall in September
Michigan City, MS
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Michigan City, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Michigan City, MS
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Michigan City, MS
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Michigan City, MS
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Michigan City, MS
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Michigan City, MS
- 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).





