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
Entering September, the average high-temperature is recorded at a moderately hot 83.8°F (28.8°C), exhibiting a minimal shift from August's 88.9°F (31.6°C). Throughout the nights in September, an average low-temperature of 67.1°F (19.5°C) is noted.Heat index
For most parts of September, the heat index is calculated to be a tropical 93.2°F (34°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In September, the average relative humidity in Foreston is 77%.Rainfall
In Foreston, in September, it is raining for 13.9 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, in Foreston, South Carolina, there are 158.1 rainfall days, and 30.28" (769mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
In September, the average length of the day in Foreston, South Carolina, is 12h and 22min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:05 pm EDT.
Sunshine
The average sunshine in September in Foreston is 9h.UV index
The average daily maximum UV index in September in Foreston is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 during September leads to these advisories:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
How hot does it get in Foreston in September?
What is the average humidity in September in Foreston?
How much does it rain in Foreston in September?
When it does not snow in Foreston?
How many hours of daylight does Foreston have in September?
When are sunrise and sunset in September in Foreston?
How many hours of sunshine does Foreston have in September?
What is the UV index intensity in September in Foreston?
Average temperature in September
Foreston, SC
- Average high temperature in September: 83.8°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in September
Foreston, SC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Foreston, SC
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Foreston, SC
- Average humidity in September: 77%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in September
Foreston, SC
- Average rainfall in September: 2.44"
The wettest months (with the highest rainfall) are August and December (3.23").
The driest month (with the least rainfall) is January (1.65").
Average rainfall days in September
Foreston, SC
- Average rainfall days in September: 13.9 days
The months with the highest number of rainy days are July and August (18.8 days).
The month with the least rainy days is November (8 days).
Average snowfall in September
Foreston, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Foreston, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Foreston, 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: 10h and 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Foreston, SC
- Average sunshine days in September: 14 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in September
Foreston, SC
- 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, February and December (UV index 3).
Average cloud cover in September
Foreston, SC
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Foreston, 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).
Foreston, South Carolina, USA
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