September weather forecastValencia Heights, SC
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Valencia Heights, South Carolina, with an average temperature varying between 84.6°F (29.2°C) and 67.5°F (19.7°C).Temperature
September is characterized by a mild reduction in the average high-temperature, from a tropical 90.1°F (32.3°C) in August to a moderately hot 84.6°F (29.2°C). Throughout the month of September, Valencia Heights sees a steady low-temperature average of 67.5°F (19.7°C).Heat index
September's mean heat index is appraised at a tropical 93.2°F (34°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In Valencia Heights, the average relative humidity in September is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 11 days and accumulates 1.46" (37mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In September, the average length of the day in Valencia Heights is 12h and 22min.On the first day of September, sunrise is at 6:58 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:09 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 suggests this advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Valencia Heights, SC
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in September: 67.5°F
The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in September
Valencia Heights, SC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Valencia Heights, SC
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Valencia Heights, SC
- Average humidity in September: 72%
The month with the highest relative humidity is December (74%).
The months with the lowest relative humidity are January, July and November (69%).
Average rainfall in September
Valencia Heights, SC
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in September
Valencia Heights, SC
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (7.3 days).
Average snowfall in September
Valencia Heights, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Valencia Heights, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Valencia Heights, SC
- 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: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Valencia Heights, SC
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (22.7 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in September
Valencia Heights, SC
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Valencia Heights, SC
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in September
Valencia Heights, 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).
