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 arrival of September coincides with an average high-temperature of a moderately hot 83.1°F (28.4°C), indicating a minimal shift from August's 88.3°F (31.3°C). Fountain Inn, in September, experiences an average temperature of 63.3°F (17.4°C) at night.Heat index
September's heat index is estimated at a tropical 89.6°F (32°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in September is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.65" (42mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 7:02 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:13 pm EDT.
Sunshine
In Fountain Inn, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. To guard against the harmful effects of the Sun, minimize exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Fountain Inn have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Fountain Inn have in September?
What is the UV index intensity in September?
Average temperature in September
Fountain Inn, SC
- Average high temperature in September: 83.1°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (49.6°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in September
Fountain Inn, SC
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Fountain Inn, SC
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Fountain Inn, SC
- Average humidity in September: 72%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Fountain Inn, SC
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in September
Fountain Inn, SC
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is October (9.6 days).
Average snowfall in September
Fountain Inn, SC
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Fountain Inn, SC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Fountain Inn, SC
- Average daylight in September: 12h and 2min
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: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Fountain Inn, SC
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in September
Fountain Inn, SC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Fountain Inn, SC
- Average cloud cover in September: 30
The months with the most cloud cover are February, March and December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Fountain Inn, SC
- 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).
Fountain Inn, South Carolina, USA
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