September weather forecast
Brunswick, NC

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Weather in September

September, the first month of the autumn in Brunswick, is still a warm month, with an average temperature ranging between max 82.6°F (28.1°C) and min 66.6°F (19.2°C).

Temperature

Brunswick starts September with an average high-temperature of a moderately hot 82.6°F (28.1°C), a minor shift from August's 87.4°F (30.8°C). Brunswick witnesses an average low-temperature of 66.6°F (19.2°C) throughout the month of September.

Heat index

The average heat index in September is computed to be a hot 89.6°F (32°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
Records show heat index calculations are tailored for shaded regions and mild 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', measures the perceived warmth when incorporating the humidity present in the air. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

The months with the highest humidity in Brunswick are May, June, August and September, with an average relative humidity of 79%.

Rainfall

In September, in Brunswick, North Carolina, the rain falls for 14.7 days. Throughout September, 2.76" (70mm) of precipitation is accumulated. In Brunswick, during the entire year, the rain falls for 161.1 days and collects up to 25.75" (654mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In September, the average length of the day in Brunswick is 12h and 23min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:40 pm. On the last day of September, in Brunswick, sunrise is at 7:09 am and sunset at 6:59 pm EDT.

Sunshine

In Brunswick, North Carolina, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Brunswick in September?

September temperatures in Brunswick, North Carolina, vary between a high-temperature of 82.6°F (28.1°C) and a low-temperature of 66.6°F (19.2°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 89.6°F (32°C).

What are the most humid months in Brunswick?

May, June, August and September, with an average relative humidity of 79%, are most humid months in Brunswick, North Carolina.

What is the average humidity in September in Brunswick?

In September, the average relative humidity is 79%.

How many days does it rain in September in Brunswick?

In Brunswick, North Carolina, during September, the rain falls for 14.7 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When it does not snow in Brunswick?

March through December are months without snowfall in Brunswick.

What is the average length of the day in September in Brunswick?

The average day length in September in Brunswick, North Carolina, is 12h and 23min.

When are sunrise and sunset in September in Brunswick?

On the first day of September, sunrise is at 6:48 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:59 pm EDT.

How many hours of sunshine does Brunswick have in September?

The average sunshine duration in September in Brunswick, North Carolina, is 9.3h.

What is the UV index reading in September in Brunswick?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to 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
Brunswick, NC

Average temperature in September - Brunswick, NC
  • Average high temperature in September: 82.6°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (52.2°F).

  • Average low temperature in September: 66.6°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).

Average pressure in September
Brunswick, NC

Average pressure in September - Brunswick, NC
  • Average pressure in September: 30.01"Hg

The months with the highest atmospheric pressure are January, November and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Brunswick, NC

Average wind speed in September - Brunswick, NC
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in September
Brunswick, NC

Average humidity in September - Brunswick, NC
  • Average humidity in September: 79%

The months with the highest relative humidity are May, June, August and September (79%).
The month with the lowest relative humidity is January (73%).

Average rainfall in September
Brunswick, NC

Average rainfall in September - Brunswick, NC
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in September
Brunswick, NC

Average rainfall days in September - Brunswick, NC
  • Average rainfall days in September: 14.7 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Brunswick, NC

Average snowfall in September - Brunswick, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Brunswick, NC

Average snowfall days in September - Brunswick, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Brunswick, NC

Average daylight in September / Average sunshine in September - Brunswick, NC
  • Average daylight in September: 12h and 2min

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: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

Average sunshine days in September
Brunswick, NC

Average sunshine days in September - Brunswick, NC
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (6.8 days).

Average UV index in September
Brunswick, NC

Average UV index in September - Brunswick, NC
  • Average UV index in September: 6

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
Brunswick, NC

Average cloud cover in September - Brunswick, NC
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in September
Brunswick, NC

Average visibility in September - Brunswick, 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).

Brunswick, North Carolina, USA

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