Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a hot 91°F (32.8°C) in August to a moderately hot 82.8°F (28.2°C). In South Haven, the average nighttime temperature during September is a comfortable 64.2°F (17.9°C).Heat index
The heat index value for September is estimated at a tropical 86°F (30°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The average relative humidity in September is 65%.Rainfall
In South Haven, in September, it is raining for 11.7 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, there are 115.9 rainfall days, and 22.44" (570mm) of precipitation is accumulated.Snowfall
April through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 7:01 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:13 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In South Haven, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 5 suggests this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does South Haven have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does South Haven have in September?
What is the UV index reading in September?
Average temperature in September
South Haven, KS
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in September
South Haven, KS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
South Haven, KS
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
South Haven, KS
- Average humidity in September: 65%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is July (61%).
Average rainfall in September
South Haven, KS
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is December (0.63").
Average rainfall days in September
South Haven, KS
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
South Haven, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
South Haven, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
South Haven, KS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
South Haven, KS
- Average sunshine days in September: 15.9 days
The months with the most sunshine days are January and December (24.1 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
South Haven, KS
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
South Haven, KS
- Average cloud cover in September: 25
The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are June and August (Cloud cover 20).
Average visibility in September
South Haven, KS
- 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).
South Haven, Kansas, USA
Weather forecast for your location
2. Allow the app to use your location