September weather forecastMar-Mac, NC
September
Weather in September
September, the first month of the autumn in Mar-Mac, is still a warm month, with an average temperature fluctuating between 81.5°F (27.5°C) and 65.3°F (18.5°C).Temperature
With the advent of September, Mar-Mac experiences an average high-temperature of a moderately hot 81.5°F (27.5°C), mirroring a close resemblance to the previous month. In the month of September, Mar-Mac experiences an average low-temperature of 65.3°F (18.5°C).Heat index
During September, the heat index is estimated at a tropical 87.8°F (31°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
The months with the highest humidity are May, August and September, with an average relative humidity of 78%.Rainfall
In Mar-Mac, in September, during 13.6 rainfall days, 3.74" (95mm) of precipitation is typically accumulated. In Mar-Mac, during the entire year, the rain falls for 165.9 days and collects up to 34.17" (868mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:57 pm EDT.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. 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
Average temperature in September
Mar-Mac, NC
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (49.6°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in September
Mar-Mac, NC
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Mar-Mac, NC
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Mar-Mac, NC
- Average humidity in September: 78%
The months with the highest relative humidity are May, August and September (78%).
The month with the lowest relative humidity is January (73%).
Average rainfall in September
Mar-Mac, NC
- Average rainfall in September: 3.74"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in September
Mar-Mac, NC
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Mar-Mac, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Mar-Mac, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1 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
Mar-Mac, NC
- Average daylight in September: 12h and 24min
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 48min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Mar-Mac, NC
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Mar-Mac, NC
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Mar-Mac, NC
- Average cloud cover in September: 37
The months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Mar-Mac, NC
- 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).
