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 start of September comes with a small reduction in the average high-temperature, subtly receding from a tropical 88.5°F (31.4°C) in August to a warm 82.6°F (28.1°C). Dunean records an average low-temperature of 62.2°F (16.8°C) throughout the month of September.Heat index
September's average heat index is appraised at a hot 87.8°F (31°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Understand that the heat index values take into account shaded locations and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
In Dunean, the average relative humidity in September is 72%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.57" (40mm) of precipitation.Snowfall
In Dunean, South Carolina, snow does not fall in April through October.Daylight
In Dunean, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:03 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:14 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Dunean in September?
What is the average humidity in September in Dunean?
What is the driest month in Dunean?
How much does it rain in Dunean in September?
When it does not snow in Dunean?
What is the average length of the day in September in Dunean?
When is the sunrise / sunset in September in Dunean?
How long on average sun shines in September in Dunean?
How high is the UV index in September in Dunean?
Average temperature in September
Dunean, SC
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (49.6°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in September
Dunean, SC
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Dunean, SC
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Dunean, SC
- Average humidity in September: 72%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Dunean, SC
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Dunean, SC
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is October (9.4 days).
Average snowfall in September
Dunean, SC
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.57").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Dunean, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Dunean, SC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
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 30min).
Average sunshine days in September
Dunean, SC
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in September
Dunean, SC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Dunean, SC
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in September
Dunean, 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).
Dunean, South Carolina, USA
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