September weather forecast and climate
South Haven, KS

September, the first month of the autumn, in South Haven, is still a warm month, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 82.8°F (28.2°C).

Temperature

In September, the average high-temperature marginally drops, from a hot 91°F (32.8°C) in August, to a moderately hot 82.8°F (28.2°C). The average low-temperature, in September, is 64.2°F (17.9°C).

Heat index

In September, the average heat index is appraised at a tropical 86.7°F (30.4°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, wind, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In South Haven, the average relative humidity is 65%.

Rainfall

In South Haven, it is raining for 11.7 days, with typically 2.01" (51mm) of accumulated precipitation. In South Haven, during the entire year, the rain falls for 115.9 days and collects up to 22.44" (570mm) of precipitation.

Snowfall

In South Haven snow does not fall in April through September.

Daylight

In South Haven, the average length of the day is 12.4h.

Sunshine

The average sunshine in South Haven 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 moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in South Haven?

In September, in South Haven, Kansas, the average high-temperature is 82.8°F (28.2°C), and the average low-temperature is 64.2°F (17.9°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines air temperature and relative humidity, is appraised at 86.7°F (30.4°C).

What is the average humidity in September in South Haven?

In South Haven, the average relative humidity in September is 65%.

How many days does it rain in September in South Haven?

In South Haven, during September, the rain falls for 11.7 days and regularly aggregates up to 2.01" (51mm) of precipitation.

Does it snow in South Haven in September?

In South Haven, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in South Haven?

In South Haven, Kansas, snow does not fall in April through September.

What is the average length of the day in September in South Haven?

In September, the average length of the day is 12.4h.

How long on average sun shines in September in South Haven?

In South Haven, Kansas, the average sunshine in September is 8.8h.

What is the UV index reading in September in South Haven?

In South Haven, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.
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"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.86").

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").
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).
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: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 8.8h

Months with the most sunshine are June, July and August (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 6.1h).

Average sunshine days in September - South Haven, KS
  • Average sunshine days in September: 15.9 days

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

Months with the highest UV index are June, July and August (UV index 7).
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).
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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).