September weather forecastThe Colonnade, GA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in The Colonnade, Georgia, with an average temperature ranging between max 83.7°F (28.7°C) and min 65.1°F (18.4°C).Temperature
The transition from August to September sees average high-temperatures adjusting to a moderately hot 83.7°F (28.7°C), from a not significantly different 88.5°F (31.4°C). September in The Colonnade witnesses an average low-temperature hovering around a comfortable 65.1°F (18.4°C).Heat index
In September, the average heat index is evaluated at a hot 91.4°F (33°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The average relative humidity in September in The Colonnade, Georgia, is 73%.Rainfall
In September, in The Colonnade, the rain falls for 13.7 days. Throughout September, 2.76" (70mm) of precipitation is accumulated. In The Colonnade, 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
The average length of the day in September in The Colonnade 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
In September, the average sunshine 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 of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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
The Colonnade, 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).





