September weather forecast
Purvis, MS

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Weather in September

Appreciated for its characteristic fall weather, September sees a downward shift in temperatures, with an average high of 87.6°F (30.9°C). September's rainfall is noticeably less at 2.87" (73mm) over 17.1 days, providing a much-needed respite from the consistent rainfall of high summer months. The month offers a medley of remaining warm summer days and upcoming cool autumn nights. Decreasing humidity coupled with shorter daylight hours signals the subtle transition of seasons from summer to fall. While constant breezy conditions keep the atmosphere comfortable, the decreased cloud cover allows for clearer skies and beautiful sunsets.

Temperature

September's weather records an average high-temperature of a still hot 87.6°F (30.9°C), showing little deviation from August. In Purvis, an average temperature of 68.2°F (20.1°C) is noted during September nights.

Heat index

September's mean heat index is evaluated at a sweltering 102.2°F (39°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Purvis, the average relative humidity in September is 76%.

Rainfall

In Purvis, in September, it is raining for 17.1 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, in Purvis, Mississippi, there are 172.1 rainfall days, and 35.75" (908mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Purvis.

Daylight

In Purvis, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:34 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:43 pm CDT.

Sunshine

In Purvis, the average sunshine in September is 9.1h.

UV index

In Purvis, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

How hot is it in Purvis in September?

The average high-temperature, in September, in Purvis, is 87.6°F (30.9°C), while the average low-temperature is 68.2°F (20.1°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 102.2°F (39°C).

What is the average humidity in September in Purvis?

In September, the average relative humidity in Purvis, Mississippi, is 76%.

How many days does it rain in September in Purvis?

In Purvis, Mississippi, in September, during 17.1 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When it does not snow in Purvis?

In Purvis, snow does not fall in April through November.

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

In Purvis, Mississippi, the average day length in September is 12h and 20min.

What time are sunrise and sunset in September in Purvis?

On the first day of September, sunrise is at 6:34 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:43 pm CDT.

How long on average sun shines in September in Purvis?

In Purvis, the average sunshine duration in September is 9.1h.

What is the UV index intensity in September in Purvis?

The average daily maximum UV index in September in Purvis is 6. A UV Index reading of 6 to 7 represents a high hazard to health from 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
Purvis, MS

Average temperature in September - Purvis, MS
  • Average high temperature in September: 87.6°F

The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (57.4°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).

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Average pressure in September
Purvis, MS

Average pressure in September - Purvis, MS
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

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Average wind speed in September
Purvis, MS

Average wind speed in September - Purvis, MS
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).

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Average humidity in September
Purvis, MS

Average humidity in September - Purvis, MS
  • Average humidity in September: 76%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Purvis, MS

Average rainfall in September - Purvis, MS
  • Average rainfall in September: 2.87"

The wettest months (with the highest rainfall) are July and August (4.37").
The driest month (with the least rainfall) is November (1.65").

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Average rainfall days in September
Purvis, MS

Average rainfall days in September - Purvis, MS
  • Average rainfall days in September: 17.1 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in September
Purvis, MS

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

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

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Average snowfall days in September
Purvis, MS

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

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

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

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

  • Average sunshine in September: 9h and 1min

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: 4h and 54min).

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Average sunshine days in September
Purvis, MS

Average sunshine days in September - Purvis, MS
  • Average sunshine days in September: 10.7 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (6.8 days).

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Average UV index in September
Purvis, MS

Average UV index in September - Purvis, 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
Purvis, MS

Average cloud cover in September - Purvis, MS
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).

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Average visibility in September
Purvis, MS

Average visibility in September - Purvis, MS
  • Average visibility in September: 5mi

The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).

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Purvis, Mississippi, USA

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