September weather forecastBrannan, GA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Brannan, Georgia, with an average temperature ranging between min 65.3°F (18.5°C) and max 84.2°F (29°C).Temperature
Entering September, Brannan's average high-temperature reads a moderately hot 84.2°F (29°C), indicating a close resemblance to the previous month's climate. September nights in Brannan are marked by an average temperature drop to a refreshing 65.3°F (18.5°C).Heat index
For September, the heat index is computed to be a hot 91.4°F (33°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In September, the average relative humidity is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 10.6 days and accumulates 1.02" (26mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Brannan, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:11 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:22 pm EDT.
Sunshine
In Brannan, the average sunshine in September is 8.6h.UV index
In Brannan, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 6 in September leads to these recommendations:
Shield from overexposure. Defense against sun-related harm is required. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brannan, GA
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in September: 65.3°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 (35.4°F).
Average pressure in September
Brannan, 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 (29.99"Hg).
Average wind speed in September
Brannan, GA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Brannan, GA
- Average humidity in September: 72%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July, October and November (71%).
Average rainfall in September
Brannan, GA
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is September (1.02").
Average rainfall days in September
Brannan, GA
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Brannan, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Brannan, GA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.7 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
Brannan, GA
- Average daylight in September: 12h and 24min
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 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 0min).
Average sunshine days in September
Brannan, GA
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (10 days).
Average UV index in September
Brannan, 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 and December (UV index 3).
Average cloud cover in September
Brannan, GA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are June, July and October (Cloud cover 31).
Average visibility in September
Brannan, 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).





