September weather forecast
Columbus, MS

Weather in September

September, the first month of the autumn, in Columbus, is also a hot month, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 86.2°F (30.1°C).

Temperature

In Columbus, Mississippi, the average high-temperature is relatively the same as in August - a still tropical 86.2°F (30.1°C). In Columbus, the average low-temperature is 66°F (18.9°C).

Heat index

The average heat index is appraised at a very hot 96.4°F (35.8°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like differences in body mass, height, and shape, metabolic differences, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in September is 72%.

Rainfall

September is the month with the least rainfall in Columbus. Rain falls for 8.7 days and accumulates 0.43" (11mm) of precipitation.

Snowfall

March through November are months without snowfall in Columbus, Mississippi.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine in Columbus is 9.3h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Columbus?

In September, the average high-temperature is 86.2°F (30.1°C), and the average low-temperature is 66°F (18.9°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 96.4°F (35.8°C).

What is the average humidity in September in Columbus?

In September, the average relative humidity is 72%.

What is the driest month in Columbus?

The month with the least rainfall in Columbus is September when the rain falls for 8.7 days and typically collects 0.43" (11mm) of precipitation.

How much does it rain in Columbus in September?

In Columbus, during September, the rain falls for 8.7 days and regularly aggregates up to 0.43" (11mm) of precipitation.

When it does not snow in Columbus?

March through November are months without snowfall.

How many hours of daylight does Columbus have in September?

The average length of the day in September is 12.4h.

How long on average sun shines in September in Columbus?

The average sunshine in September in Columbus, Mississippi, is 9.3h.

What is the UV index intensity in September in Columbus?

In Columbus, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Columbus, MS

Average temperature in September - Columbus, MS
  • Average high temperature in September: 86.2°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).

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Average pressure in September
Columbus, MS

Average pressure in September - Columbus, MS
  • Average pressure in September: 30"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.96").

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Average wind speed in September
Columbus, MS

Average wind speed in September - Columbus, MS
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in September
Columbus, MS

Average humidity in September - Columbus, MS
  • Average humidity in September: 72%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Columbus, MS

Average rainfall in September - Columbus, MS
  • Average rainfall in September: 0.43"

The wettest months (with the highest rainfall) are February, April and December (1.18").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days in September
Columbus, MS

Average rainfall days in September - Columbus, MS
  • Average rainfall days in September: 8.7 days

Months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (6 days).

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Average snowfall in September
Columbus, MS

Average snowfall in September - Columbus, MS
  • Average snowfall in September: 0"

Months with the highest snowfall are January and December (0.08").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Columbus, MS

Average snowfall days in September - Columbus, MS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Columbus, MS

Average daylight in September / Average sunshine in September - Columbus, MS
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 9.3h

Months with the most sunshine are June and July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in September
Columbus, MS

Average sunshine days in September - Columbus, MS
  • Average sunshine days in September: 17.8 days

The month with the most sunshine days is October (23 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in September
Columbus, MS

Average UV index in September - Columbus, MS
  • Average UV index in September: 6

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in September
Columbus, MS

Average cloud cover in September - Columbus, MS
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 28).

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Average visibility in September
Columbus, MS

Average visibility in September - Columbus, MS
  • 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).

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