September weather forecast
Newnan, GA

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Weather in September

September marks the beginning of the autumn season in Newnan, Georgia. For the most part, it's honored by a drop in temperatures. Rainfall takes a dip this month, sliding to a mere 0.35" (9mm). Consequently, the cloud cover also decreases, bringing about clearer skies. Reduced wind speed provides a calming effect, accompanying the transition to a cooler season.

Temperature

Newnan, Georgia, starts September with an average high-temperature of a moderately hot 83.7°F (28.7°C), hinting at a minimal fluctuation from August. During September, Newnan experiences an average low-temperature of 64.8°F (18.2°C) at night.

Heat index

In September, the average heat index is calculated to be a hot 91.4°F (33°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The average relative humidity in September in Newnan is 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 8.4 days and accumulates 0.35" (9mm) of precipitation.

Snowfall

February, April through December are months without snowfall.

Daylight

In September, the average length of the day in Newnan is 12h and 22min.
On the first day of the month, sunrise is at 7:13 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:24 pm EDT.

Sunshine

In September, the average sunshine in Newnan is 8.7h.

UV index

In Newnan, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

Is it hot in Newnan during September?

In September, in Newnan, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 64.8°F (18.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in September is calculated to be 91.4°F (33°C).

What is the average humidity in September in Newnan?

In Newnan, Georgia, the average relative humidity in September is 74%.

What is the driest month in Newnan?

September is the month with the least rainfall in Newnan, Georgia. Rain falls for 8.4 days and accumulates 0.35" (9mm) of precipitation.

How much does it rain in Newnan in September?

In September, in Newnan, Georgia, the rain falls for 8.4 days. Throughout September, 0.35" (9mm) of precipitation is accumulated.

When it does not snow in Newnan?

February, April through December are months without snowfall in Newnan, Georgia.

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

In Newnan, the average day length in September is 12h and 22min.

When are sunrise and sunset in September in Newnan?

On the first day of September, sunrise is at 7:13 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:24 pm EDT.

How many hours of sunshine does Newnan have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index intensity in September in Newnan?

In Newnan, Georgia, 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 exposure to the Sun's UV radiation.
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
Newnan, GA

Average temperature in September - Newnan, GA
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (51.8°F).

  • Average low temperature in September: 64.8°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

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Average pressure in September
Newnan, GA

Average pressure in September - Newnan, GA
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Newnan, GA

Average wind speed in September - Newnan, GA
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in September
Newnan, GA

Average humidity in September - Newnan, GA
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).

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Average rainfall in September
Newnan, GA

Average rainfall in September - Newnan, GA
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is August (1.1").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days in September
Newnan, GA

Average rainfall days in September - Newnan, GA
  • Average rainfall days in September: 8.4 days

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is October (5.2 days).

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Average snowfall in September
Newnan, GA

Average snowfall in September - Newnan, GA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and March (0.04").
The months with the least snowfall are February, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Newnan, GA

Average snowfall days in September - Newnan, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.6 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
Newnan, GA

Average daylight in September / Average sunshine in September - Newnan, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Newnan, GA

Average sunshine days in September - Newnan, GA
  • Average sunshine days in September: 18.7 days

The month with the most sunshine days is October (24.3 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index in September
Newnan, GA

Average UV index in September - Newnan, GA
  • Average UV index in September: 6

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Newnan, GA

Average cloud cover in September - Newnan, GA
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are June, September and October (Cloud cover 31).

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Average visibility in September
Newnan, GA

Average visibility in September - Newnan, GA
  • Average visibility in September: 6mi

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

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Newnan, Georgia, USA

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