September weather forecastSenoia, GA
September
Weather in September
September, the first month of the autumn in Senoia, is still a warm month, with an average temperature fluctuating between 65.1°F (18.4°C) and 83.7°F (28.7°C).Temperature
The arrival of September coincides with an average high-temperature of a moderately hot 83.7°F (28.7°C), indicating a minimal shift from August's 88.5°F (31.4°C). Senoia's temperature in September lowers to a consistent average of 65.1°F (18.4°C) during the nights.Heat index
In September, the heat index is evaluated at a hot 91.4°F (33°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in September is 73%.Rainfall
In Senoia, during September, the rain falls for 13.7 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Senoia, during the entire year, the rain falls for 179.7 days and collects up to 39.76" (1010mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Senoia, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Senoia, GA
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in September
Senoia, 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
Senoia, GA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Senoia, GA
- Average humidity in September: 73%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).
Average rainfall in September
Senoia, GA
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is August (5.04").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days in September
Senoia, GA
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in September
Senoia, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Senoia, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.9 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
Senoia, 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
Senoia, GA
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (7 days).
Average UV index in September
Senoia, GA
- Average UV index in September: 6
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Senoia, 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 and October (Cloud cover 31).
Average visibility in September
Senoia, 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).
