September weather forecast
Vicksburg, MS

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Twin bridges across the large Mississippi River at Vicksburg, Mississippi, and green benches in the waterfront walk street
Twin bridges across the large Mississippi River at Vicksburg, Mississippi, and green benches in the waterfront walk street

Weather in September

September in Vicksburg signifies the onset of the transition period between summer and autumn. Temperatures begin to cool from the 90s°F of the peak summer, moving towards more moderate averages. Rainfall also reduces to 2.48" (63mm), signaling a dryer period for the city. The ever-changing character of September's weather reveals an interesting mix of remaining summer heat and a fresh inviting breeze. This character change in the season makes for a prime time for outdoor explorations in the city.

Temperature

September records an average high-temperature of a still hot 87.8°F (31°C), indicating a minor variation from the preceding month. Nighttime temperature lowers to an average of 67.6°F (19.8°C) in September.

Heat index

In September, the heat index is appraised at a very hot 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Consider that heat index readings are for situations in the shade and light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Vicksburg, the average relative humidity in September is 73%.

Rainfall

In Vicksburg, in September, it is raining for 15 days, with typically 2.48" (63mm) of accumulated precipitation. In Vicksburg, during the entire year, the rain falls for 169.7 days and collects up to 38.82" (986mm) of precipitation.

Snowfall

April through October are months without snowfall in Vicksburg.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September in Vicksburg, sunrise is at 6:39 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:49 pm CDT.

Sunshine

In September, the average sunshine is 9.8h.

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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in September translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

How hot is September in Vicksburg?

The average high-temperature, in September, in Vicksburg, is 87.8°F (31°C), while the average low-temperature is 67.6°F (19.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 102.2°F (39°C).

What is the average humidity in September in Vicksburg?

The average relative humidity in September in Vicksburg, Mississippi, is 73%.

How many days does it rain in September in Vicksburg?

In Vicksburg, Mississippi, in September, during 15 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow in Vicksburg?

In Vicksburg, snow does not fall in April through October.

What is the average length of the day in September in Vicksburg?

The average day length in September is 12h and 22min.

When are sunrise and sunset in September in Vicksburg?

On the first day of September in Vicksburg, sunrise is at 6:39 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:49 pm CDT.

How many hours of sunshine does Vicksburg have in September?

In Vicksburg, the average sunshine duration in September is 9.8h.

How high is the UV index in September in Vicksburg?

In Vicksburg, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Vicksburg, MS

Average temperature in September - Vicksburg, MS
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in September: 67.6°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).

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Average pressure in September
Vicksburg, MS

Average pressure in September - Vicksburg, MS
  • Average pressure in September: 29.99"Hg

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

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Average wind speed in September
Vicksburg, MS

Average wind speed in September - Vicksburg, MS
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in September
Vicksburg, MS

Average humidity in September - Vicksburg, MS
  • Average humidity in September: 73%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Vicksburg, MS

Average rainfall in September - Vicksburg, MS
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is November (2.28").

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Average rainfall days in September
Vicksburg, MS

Average rainfall days in September - Vicksburg, MS
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is October (8.9 days).

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Average snowfall in September
Vicksburg, MS

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

The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Vicksburg, MS

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

The month with the highest number of snowfall days is January (1 days).
The 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
Vicksburg, MS

Average daylight in September / Average sunshine in September - Vicksburg, MS
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Vicksburg, MS

Average sunshine days in September - Vicksburg, MS
  • Average sunshine days in September: 12.8 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (9.9 days).

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Average UV index in September
Vicksburg, MS

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

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 3).

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Average cloud cover in September
Vicksburg, MS

Average cloud cover in September - Vicksburg, MS
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).

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Average visibility in September
Vicksburg, MS

Average visibility in September - Vicksburg, 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).

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Vicksburg, Mississippi, USA

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