September weather forecast and climate
Corolla, NC

Weather in September

September, the first month of the autumn, in Corolla, is still a warm month, with average temperature fluctuating between 77.5°F (25.3°C) and 72.5°F (22.5°C).

Temperature

In Corolla, the average high-temperature is essentially the same as in August - a still warm 77.5°F (25.3°C). In September, the average low-temperature is 72.5°F (22.5°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In September, the rain falls for 14.5 days. Throughout September, 3.82" (97mm) of precipitation is accumulated. Throughout the year, there are 173.9 rainfall days, and 37.24" (946mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Corolla.

Daylight

In Corolla, the average length of the day is 12.4h.

Sunshine

In Corolla, the average sunshine is 9.5h.

UV index

In Corolla, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Corolla?

In Corolla, the average relative humidity in September is 77%.

How many days does it rain in September in Corolla?

In Corolla, North Carolina, in September, during 14.5 rainfall days, 3.82" (97mm) of precipitation is typically accumulated.

When it does not snow in Corolla?

April through November are months without snowfall in Corolla, North Carolina.

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

The average length of the day in September in Corolla, North Carolina, is 12.4h.

How many hours of sunshine does Corolla have in September?

In September, the average sunshine is 9.5h.

How high is the UV index in September in Corolla?

In Corolla, North Carolina, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Corolla, NC

Average temperature in September - Corolla, NC
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 72.5°F

The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

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Average pressure in September
Corolla, NC

Average pressure in September - Corolla, NC
  • Average pressure in September: 30.02"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.96").

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Average wind speed in September
Corolla, NC

Average wind speed in September - Corolla, NC
  • Average wind speed in September: 11.7mph

The windiest month (with the highest average wind speed) is March (14mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).

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Average humidity in September
Corolla, NC

Average humidity in September - Corolla, NC
  • Average humidity in September: 77%

The month with the highest relative humidity is May (80%).
Months with the lowest relative humidity are October and November (74%).

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Average rainfall in September
Corolla, NC

Average rainfall in September - Corolla, NC
  • Average rainfall in September: 3.82"

The wettest month (with the highest rainfall) is August (4.02").
The driest month (with the least rainfall) is January (2.24").

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Average rainfall days in September
Corolla, NC

Average rainfall days in September - Corolla, NC
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (11.6 days).

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Average snowfall in September
Corolla, NC

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

The month with the highest snowfall is February (0.28").
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
Corolla, NC

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

The month with the highest number of snowfall days is January (1.4 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Corolla, NC
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9.5h

The month with the most sunshine is June (Average sunshine: 11.1h).
Months with the least sunshine are January and February (Average sunshine: 5.4).

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Average sunshine days in September
Corolla, NC

Average sunshine days in September - Corolla, NC
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is December (17.4 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in September
Corolla, NC

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

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in September
Corolla, NC

Average cloud cover in September - Corolla, NC
  • Average cloud cover in September: 32

The month with the most cloud cover is March (Cloud cover 44).
Months with the least cloud cover are June and July (Cloud cover 25).

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Average visibility in September
Corolla, NC

Average visibility in September - Corolla, NC
  • Average visibility in September: 6mi

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

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