Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Atwell starts September with an average high-temperature of a warm 85.3°F (29.6°C), a minor shift from August's 90.3°F (32.4°C). September nights experience a consistent temperature drop to an enjoyable 67.1°F (19.5°C).Heat index
During September, the heat index is appraised at a torrid 95°F (35°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly 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.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 12.9 days and accumulates 1.93" (49mm) of precipitation.Snowfall
In Atwell, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:14 pm EDT.
Sunshine
In Atwell, Georgia, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Atwell have in September?
How high is the UV index in September?
Average temperature in September
Atwell, GA
- Average high temperature in September: 85.3°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in September
Atwell, GA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Atwell, GA
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Atwell, GA
- Average humidity in September: 72%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, July, October and November (71%).
Average rainfall in September
Atwell, GA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Atwell, GA
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is August (20.1 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Atwell, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Atwell, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Atwell, 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Atwell, GA
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Atwell, GA
- 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).
Average cloud cover in September
Atwell, GA
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Atwell, 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).
Atwell, Georgia, USA
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