September weather forecastAiken, TX
September
Weather in September
September, the first month of the autumn in Aiken, is also a moderately hot month, with an average temperature fluctuating between 63.5°F (17.5°C) and 82.9°F (28.3°C).Temperature
September brings a minor shift in the average high-temperature, adjusting from a hot 91.9°F (33.3°C) in August to a warm 82.9°F (28.3°C). September brings an average low-temperature of 63.5°F (17.5°C) to Aiken.Heat index
September's average heat index is computed to be a tropical 86°F (30°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
With an average relative humidity of 58%, September is the most humid month.Rainfall
September is the month with the most rainfall. Rain falls for 12.4 days and accumulates 2.32" (59mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Aiken, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:20 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:31 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In Aiken, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less 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. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aiken, TX
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (51.6°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Aiken, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Aiken, TX
- Average wind speed in September: 10.3mph
The windiest month (with the highest average wind speed) is April (13.8mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).
Average humidity in September
Aiken, TX
- Average humidity in September: 58%
The month with the highest relative humidity is September (58%).
The month with the lowest relative humidity is April (42%).
Average rainfall in September
Aiken, TX
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is September (2.32").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Aiken, TX
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in September
Aiken, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Aiken, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Aiken, TX
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Aiken, TX
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is January (26.5 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in September
Aiken, TX
- 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 December (UV index 2).
Average cloud cover in September
Aiken, TX
- Average cloud cover in September: 24
The month with the most cloud cover is September (Cloud cover 24).
The months with the least cloud cover are June and August (Cloud cover 16).
Average visibility in September
Aiken, TX
- 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).
