September weather forecastPort Wentworth, GA
September
Weather in September
September, the first month of the autumn in Port Wentworth, is also a moderately hot month, with an average temperature ranging between min 71.1°F (21.7°C) and max 85.6°F (29.8°C).Temperature
The shift to September signals an average high-temperature of a moderately hot 85.6°F (29.8°C), subtly varied from August's 90.1°F (32.3°C). Port Wentworth's nighttime temperature in September drops to an average of 71.1°F (21.7°C).Heat index
The heat index value for September is computed to be a torrid 96.8°F (36°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Port Wentworth, during September, the rain falls for 16.2 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, in Port Wentworth, Georgia, there are 167.8 rainfall days, and 30" (762mm) of precipitation is accumulated.Snowfall
In Port Wentworth, snow does not fall in February through November.Daylight
The average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:10 pm EDT.
Sunshine
The average sunshine in September in Port Wentworth, Georgia, is 8.6h.UV index
In Port Wentworth, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Port Wentworth, GA
- Average high temperature in September: 85.6°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (58.1°F).
- Average low temperature in September: 71.1°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in September
Port Wentworth, GA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Port Wentworth, GA
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Port Wentworth, GA
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (72%).
Average rainfall in September
Port Wentworth, GA
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is August (4.69").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in September
Port Wentworth, GA
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is August (23.1 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Port Wentworth, GA
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Port Wentworth, GA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.2 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
Port Wentworth, GA
- Average daylight in September: 12h and 24min
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 36min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Port Wentworth, GA
- Average sunshine days in September: 11.2 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is August (5.2 days).
Average UV index in September
Port Wentworth, GA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Port Wentworth, GA
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Port Wentworth, 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).
