September weather forecast
Mar-Mac, NC

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Weather in September

The first month of the autumn, September, is still a warm month in Mar-Mac, North Carolina, with an average temperature varying between 81.5°F (27.5°C) and 65.3°F (18.5°C).

Temperature

The transition from August to September sees average high-temperatures adjusting to a moderately hot 81.5°F (27.5°C), from a not significantly different 86.5°F (30.3°C). During September, the average low-temperature in Mar-Mac is a refreshing 65.3°F (18.5°C).

Heat index

For most parts of September, the heat index is computed to be a tropical 87.8°F (31°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

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. Throughout the year, there are 165.9 rainfall days, and 34.17" (868mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Mar-Mac, North Carolina.

Daylight

In September, the average length of the day in Mar-Mac is 12h and 23min.
On the first day of September, sunrise is at 6:45 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:57 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

The average daily maximum UV index in September in Mar-Mac is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Ensure safety - Sun damage prevention is strongly urged. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

What are the temperatures in Mar-Mac in September?

Mar-Mac in September has an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 65.3°F (18.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in September is computed to be 87.8°F (31°C).

What are the most humid months in Mar-Mac?

The months with the highest humidity are May, August and September, with an average relative humidity of 78%.

What is the average humidity in September in Mar-Mac?

In Mar-Mac, North Carolina, the average relative humidity in September is 78%.

How much does it rain in Mar-Mac in September?

In Mar-Mac, in September, during 13.6 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When it does not snow in Mar-Mac?

In Mar-Mac, snow does not fall in April through November.

What is the average length of the day in September in Mar-Mac?

The average day length in September is 12h and 23min.

When is the sunrise / sunset in September in Mar-Mac?

In September, on the first day of the month, sunrise is at 6:45 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:57 pm EDT.

How long on average sun shines in September in Mar-Mac?

In Mar-Mac, North Carolina, the average sunshine duration in September is 9h.

What is the UV index intensity in September in Mar-Mac?

In Mar-Mac, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mar-Mac, NC

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).

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Average pressure in September
Mar-Mac, NC

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).

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Average wind speed in September
Mar-Mac, NC

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).

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Average humidity in September
Mar-Mac, NC

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%).

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Average rainfall in September
Mar-Mac, NC

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").

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Average rainfall days in September
Mar-Mac, NC

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).

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Average snowfall in September
Mar-Mac, NC

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").

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Average snowfall days in September
Mar-Mac, NC

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).

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Average daylight in September /
Average sunshine in September
Mar-Mac, NC

Average daylight in September / Average sunshine in September - Mar-Mac, NC
  • 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 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).

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Average sunshine days in September
Mar-Mac, NC

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).

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Average UV index in September
Mar-Mac, NC

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).

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Average cloud cover in September
Mar-Mac, NC

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).

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Average visibility in September
Mar-Mac, NC

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).

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Mar-Mac, North Carolina, USA

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