September weather forecastRivermist, GA
September
Weather in September
September, the first month of the autumn in Rivermist, is also a moderately hot month, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 84°F (28.9°C).Temperature
Rivermist's transition from August to September introduces an average high-temperature of a moderately hot 84°F (28.9°C), marking an insignificant variation from the 89.1°F (31.7°C). An average nighttime temperature of 65.1°F (18.4°C) is witnessed throughout September.Heat index
For September, the heat index is computed to be a hot 91.4°F (33°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 highly critical for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In September, the average relative humidity is 71%.Rainfall
In Rivermist, during September, the rain falls for 11.5 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Rivermist, during the entire year, the rain falls for 158.9 days and collects up to 27.32" (694mm) of precipitation.Snowfall
In Rivermist, snow does not fall in April through October.Daylight
In Rivermist, 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 Rivermist, the average sunshine in September is 8.6h.UV index
In Rivermist, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rivermist, 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
Rivermist, 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
Rivermist, 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
Rivermist, 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
Rivermist, 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
Rivermist, 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
Rivermist, 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
Rivermist, 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
Rivermist, GA
- Average daylight in September: 12h and 24min
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 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
Rivermist, 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
Rivermist, 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
Rivermist, 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
Rivermist, 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).





