September weather forecast
Gwinnstone, GA

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Weather in September

September, the first month of the autumn in Gwinnstone, is also a moderately hot month, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 65.1°F (18.4°C).

Temperature

The arrival of September sees an average high-temperature of a moderately hot 84°F (28.9°C), hardly diverging from August's 89.1°F (31.7°C). In Gwinnstone, an average low-temperature of 65.1°F (18.4°C) is recorded during September nights.

Heat index

The heat index value during September is calculated to be a hot 91.4°F (33°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In September, the average relative humidity is 71%.

Rainfall

In Gwinnstone, during September, the rain falls for 11.5 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 158.9 rainfall days, and 27.32" (694mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:21 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index in Gwinnstone is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Be vigilant - Preventing sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

An average high-temperature, in September, in Gwinnstone, is 84°F (28.9°C) and the average low-temperature is 65.1°F (18.4°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 91.4°F (33°C).

What is the average humidity in September?

In Gwinnstone, Georgia, the average relative humidity in September is 71%.

How many days does it rain in September?

In Gwinnstone, during September, the rain falls for 11.5 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Gwinnstone have in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:21 pm EDT.

How many hours of sunshine does Gwinnstone have in September?

In Gwinnstone, the average sunshine duration in September is 8.6h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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
Gwinnstone, GA

Average temperature in September - Gwinnstone, GA
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

Average pressure in September
Gwinnstone, GA

Average pressure in September - Gwinnstone, GA
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Gwinnstone, GA

Average wind speed in September - Gwinnstone, GA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in September
Gwinnstone, GA

Average humidity in September - Gwinnstone, GA
  • Average humidity in September: 71%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall in September
Gwinnstone, GA

Average rainfall in September - Gwinnstone, GA
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is October (1.46").

Average rainfall days in September
Gwinnstone, GA

Average rainfall days in September - Gwinnstone, GA
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are October and November (9.4 days).

Average snowfall in September
Gwinnstone, GA

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

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

Average snowfall days in September
Gwinnstone, GA

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

The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Gwinnstone, GA

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • 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 0min).

Average sunshine days in September
Gwinnstone, GA

Average sunshine days in September - Gwinnstone, GA
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in September
Gwinnstone, GA

Average UV index in September - Gwinnstone, GA
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Gwinnstone, GA

Average cloud cover in September - Gwinnstone, GA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Gwinnstone, GA

Average visibility in September - Gwinnstone, GA
  • 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).

Gwinnstone, Georgia, USA

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