September weather forecast and climate
Spring Lake, NC

The first month of the autumn, September, is still a warm month in Spring Lake, North Carolina, with average temperature ranging between max 82.4°F (28°C) and min 65.1°F (18.4°C).

Temperature

In September, the average high-temperature marginally drops, from a tropical 87.8°F (31°C) in August, to a warm 82.4°F (28°C). In Spring Lake, North Carolina, the average low-temperature is 65.1°F (18.4°C).

Heat index

In September, the average heat index is evaluated at a tropical 88.7°F (31.5°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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

Months with the highest humidity in Spring Lake, North Carolina, are May, September and December, with an average relative humidity of 76%.

Rainfall

In Spring Lake, North Carolina, during September, the rain falls for 13.5 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, there are 165.9 rainfall days, and 33.58" (853mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12.4h.

Sunshine

The average sunshine in September is 9.1h.

UV index

In Spring Lake, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Spring Lake?

The average high-temperature, in September, in Spring Lake, North Carolina, is 82.4°F (28°C), while the average low-temperature is 65.1°F (18.4°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 88.7°F (31.5°C).

What is the most humid month in Spring Lake?

May, September and December, with an average relative humidity of 76%, are most humid months in Spring Lake.

What is the average humidity in September in Spring Lake?

The average relative humidity in September in Spring Lake is 76%.

How much does it rain in Spring Lake in September?

In Spring Lake, during September, the rain falls for 13.5 days and regularly aggregates up to 3.19" (81mm) of precipitation.

When it does not snow in Spring Lake?

April through October are months without snowfall in Spring Lake.

What is the average length of the day in September in Spring Lake?

In September, the average length of the day in Spring Lake is 12.4h.

How many hours of sunshine does Spring Lake have in September?

In Spring Lake, the average sunshine in September is 9.1h.

What is the UV index intensity in September in Spring Lake?

In September, the average daily maximum UV index in Spring Lake, North Carolina, is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.
Average temperature in September - Spring Lake, NC
  • Average high temperature in September: 28°C

The warmest month (with the highest average high temperature) is July (32.2°C).
The month with the lowest average high temperature is January (10°C).

  • Average low temperature in September: 18.4°C

The month with the highest average low temperature is July (22.2°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

Average pressure in September - Spring Lake, NC
  • Average pressure in September: 1016.6mbar

The month with the highest atmospheric pressure is November (1020.8mbar).
The month with the lowest atmospheric pressure is June (1014.6mbar).

Average wind speed in September - Spring Lake, NC
  • Average wind speed in September: 10km/h

The windiest month (with the highest average wind speed) is April (13.3km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

Average humidity in September - Spring Lake, NC
  • Average humidity in September: 76%

Months with the highest relative humidity are May, September and December (76%).
The month with the lowest relative humidity is November (72%).

Average rainfall in September - Spring Lake, NC
  • Average rainfall in September: 81mm

The wettest month (with the highest rainfall) is August (91mm).
The driest month (with the least rainfall) is January (53mm).

Average rainfall days in September - Spring Lake, NC
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in September - Spring Lake, NC
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (26mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September - Spring Lake, NC
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and February (1.3 days).
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 - Spring Lake, NC
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is July (Average sunshine: 10.7h).
Months with the least sunshine are January and December (Average sunshine: 5.5).

Average sunshine days in September - Spring Lake, NC
  • Average sunshine days in September: 14.8 days

Months with the most sunshine days are October and November (19.6 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in September - Spring Lake, NC
  • Average UV index in September: 5

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 - Spring Lake, NC
  • Average cloud cover in September: 35

Months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in September - Spring Lake, NC
  • Average visibility in September: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).