September weather forecast
Naples, NC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Naples, North Carolina, with an average temperature fluctuating between 77.2°F (25.1°C) and 55.8°F (13.2°C).

Temperature

A subtle shift in Naples's weather is observed as August turns into September, with the average high temperature reducing from 82.6°F (28.1°C) to a still warm 77.2°F (25.1°C). September nights are marked by an average temperature drop to a mild 55.8°F (13.2°C).

Humidity

May, September and December, with an average relative humidity of 78%, are the most humid months in Naples.

Rainfall

September is the month with the least rainfall in Naples. Rain falls for 10.1 days and accumulates 0.91" (23mm) of precipitation.

Snowfall

In Naples, North Carolina, snow does not fall in May through October.

Daylight

In Naples, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of September, in Naples, sunrise is at 7:24 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September is 8.2h.

UV index

In Naples, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Naples in September?

During September, Naples experiences an average high-temperature of 77.2°F (25.1°C) and a low-temperature of 55.8°F (13.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 89.6°F (32°C).

What is the most humid month in Naples?

May, September and December, with an average relative humidity of 78%, are most humid months.

What is the average humidity in September in Naples?

In Naples, the average relative humidity in September is 78%.

What is the driest month in Naples?

September is the month with the least rainfall in Naples. Rain falls for 10.1 days and accumulates 0.91" (23mm) of precipitation.

How many days does it rain in September in Naples?

In Naples, North Carolina, in September, during 10.1 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow in Naples?

May through October are months without snowfall in Naples, North Carolina.

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

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

When are sunrise and sunset in September in Naples?

On the first day of September in Naples, North Carolina, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm EDT.

How many hours of sunshine does Naples have in September?

In September, the average sunshine duration in Naples, North Carolina, is 8.2h.

How high is the UV index in September in Naples?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium 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
Naples, NC

Average temperature in September - Naples, NC
  • Average high temperature in September: 77.2°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (28°F).

Average pressure in September
Naples, NC

Average pressure in September - Naples, NC
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Naples, NC

Average wind speed in September - Naples, NC
  • Average wind speed in September: 3.9mph

The windiest month (with the highest average wind speed) is January (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in September
Naples, NC

Average humidity in September - Naples, NC
  • Average humidity in September: 78%

The months with the highest relative humidity are May, September and December (78%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in September
Naples, NC

Average rainfall in September - Naples, NC
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in September
Naples, NC

Average rainfall days in September - Naples, NC
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is November (6.8 days).

Average snowfall in September
Naples, NC

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

The month with the highest snowfall is December (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Naples, NC

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

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Naples, 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: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Naples, NC

Average sunshine days in September - Naples, NC
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (12.6 days).

Average UV index in September
Naples, NC

Average UV index in September - Naples, NC
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Naples, NC

Average cloud cover in September - Naples, NC
  • Average cloud cover in September: 37

The months with the most cloud cover are February, March and December (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in September
Naples, NC

Average visibility in September - Naples, NC
  • Average visibility in September: 5mi

The months with the highest visibility are February, June, July and November (6mi).
The months with the lowest visibility are January, March, April, May, August, September, October and December (5mi).

Naples, North Carolina, USA

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