September weather forecastBrinson, GA
September
Weather in September
The first month of the autumn, September, is also a hot month in Brinson, Georgia, with an average temperature fluctuating between 69.6°F (20.9°C) and 86.9°F (30.5°C).Temperature
Shifting into September, Brinson records an average high-temperature of a still hot 86.9°F (30.5°C), presenting minor fluctuations compared to the previous month. An average low-temperature of 69.6°F (20.9°C) is recorded during the nights in September.Heat index
The heat index for September is computed to be a very hot 100.4°F (38°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Brinson, in September, during 15.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 164.5 rainfall days, and 30.59" (777mm) of precipitation is accumulated.Snowfall
In Brinson, snow does not fall in February through December.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:15 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:24 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brinson, GA
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in September: 69.6°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
Brinson, GA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Brinson, GA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are February and March (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Brinson, GA
- Average humidity in September: 75%
The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Brinson, GA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in September
Brinson, GA
- Average rainfall days in September: 15.3 days
The months with the highest number of rainy days are July and August (21.6 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in September
Brinson, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Brinson, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Brinson, GA
- Average daylight in September: 12h and 18min
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: 8h and 36min
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 30min).
Average sunshine days in September
Brinson, GA
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in September
Brinson, GA
- Average UV index in September: 6
The months with the highest UV index are May, 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
Brinson, GA
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Brinson, 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).





