Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition from August to September sees an average high-temperature of a moderately hot 85.1°F (29.5°C), indicating a minor variance from the prior month. During September, the average low-temperature is a pleasant 68.5°F (20.3°C).Heat index
September's mean heat index is calculated to be a sweltering 95°F (35°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. 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 are especially vital to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The average relative humidity in September is 76%.Rainfall
In September, the rain falls for 16.2 days. Throughout September, 2.28" (58mm) of precipitation is accumulated. In Sylvester, during the entire year, the rain falls for 173.7 days and collects up to 34.49" (876mm) of precipitation.Snowfall
In Sylvester, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 7:11 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:21 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 6 transforms into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Sylvester have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Sylvester have in September?
What is the UV index intensity in September?
Average temperature in September
Sylvester, GA
- Average high temperature in September: 85.1°F
The warmest months (with the highest average high temperature) are July and August (89.1°F).
The month with the lowest average high temperature is January (57.6°F).
- Average low temperature in September: 68.5°F
The months with the highest average low temperature are July and August (72.9°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in September
Sylvester, GA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Sylvester, GA
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Sylvester, GA
- Average humidity in September: 76%
The month with the highest relative humidity is August (77%).
The months with the lowest relative humidity are January, October and November (71%).
Average rainfall in September
Sylvester, GA
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is August (3.98").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in September
Sylvester, GA
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is July (23.1 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in September
Sylvester, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Sylvester, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sylvester, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Sylvester, GA
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (5.3 days).
Average UV index in September
Sylvester, GA
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Sylvester, GA
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 41).
The months with the least cloud cover are May and October (Cloud cover 28).
Average visibility in September
Sylvester, 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).
Sylvester, Georgia, USA
Weather forecast for your location
2. Allow the app to use your location