September weather forecastSouth Haven, IN
September
Weather in September
September, the first month of the autumn in South Haven, is also an agreeable month, with an average temperature ranging between min 58.5°F (14.7°C) and max 73°F (22.8°C).Temperature
The arrival of September records an average high-temperature of a pleasant 73°F (22.8°C), closely related to the 77.7°F (25.4°C) observed in August. South Haven's nighttime temperature in September falls to an average of 58.5°F (14.7°C).Humidity
The average relative humidity in September is 77%.Rainfall
In South Haven, in September, it is raining for 14.1 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 157.4 rainfall days, and 23.9" (607mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In South Haven, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:21 pm. On the last day of September, in South Haven, sunrise is at 6:45 am and sunset at 6:31 pm CDT.
Sunshine
In South Haven, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Exercise prevention - Warding off sunburn is urged. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
South Haven, IN
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
South Haven, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
South Haven, IN
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
South Haven, IN
- Average humidity in September: 77%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
South Haven, IN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in September
South Haven, IN
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in September
South Haven, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
South Haven, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
South Haven, IN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
South Haven, IN
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is November (15.7 days).
The months with the least sunshine days are June and August (10.4 days).
Average UV index in September
South Haven, IN
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
South Haven, IN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
South Haven, IN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
