September weather forecastViviani, GA
September
Weather in September
September, the first month of the autumn in Viviani, is also a hot month, with an average temperature ranging between min 69.8°F (21°C) and max 86.4°F (30.2°C).Temperature
The high-temperature average in September for Viviani is a still tropical 86.4°F (30.2°C), staying closely aligned with August's conditions. Viviani encounters a steady low-temperature average of 69.8°F (21°C) throughout the month of September.Heat index
The heat index value for September is calculated to be a fiery hot 98.6°F (37°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Know that the heat index computations account for shaded terrains and slight winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense 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 77%.Rainfall
In September, in Viviani, the rain falls for 12.9 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 139 rainfall days, and 15.12" (384mm) of precipitation is accumulated.Daylight
In Viviani, the average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Viviani, GA
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 69.8°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
Viviani, GA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Viviani, GA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Viviani, GA
- Average humidity in September: 77%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is January (71%).
Average rainfall in September
Viviani, GA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Viviani, GA
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is November (6.2 days).
Average daylight in September /
Average sunshine in September
Viviani, 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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Viviani, GA
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (7.8 days).
Average UV index in September
Viviani, GA
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Viviani, GA
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Viviani, 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).





