September weather forecast
Aquia Harbour, VA

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Weather in September

September, the first month of the autumn in Aquia Harbour, is still a warm month, with an average temperature fluctuating between 79.3°F (26.3°C) and 61°F (16.1°C).

Temperature

With the commencement of September, Aquia Harbour records a moderate temperature decline, with the average high easing from August's tropical 86.2°F (30.1°C) to a moderately hot 79.3°F (26.3°C). Throughout the September nights, Aquia Harbour encounters a low-temperature of 61°F (16.1°C).

Humidity

The average relative humidity in September is 76%.

Rainfall

In September, the rain falls for 11.5 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. In Aquia Harbour, during the entire year, the rain falls for 155.6 days and collects up to 31.61" (803mm) of precipitation.

Snowfall

May through October are months without snowfall in Aquia Harbour, Virginia.

Daylight

In Aquia Harbour, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In Aquia Harbour, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 5 in September transforms into this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. 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.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The average high-temperature and low-temperature during September are 79.3°F (26.3°C) and 61°F (16.1°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 98.6°F (37°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How many days does it rain in September?

In Aquia Harbour, in September, during 11.5 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When it does not snow?

In Aquia Harbour, snow does not fall in May through October.

What is the average length of the day in September?

The average day length in September is 12h and 25min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:39 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm EDT.

How many hours of sunshine does Aquia Harbour have in September?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Aquia Harbour, VA

Average temperature in September - Aquia Harbour, VA
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in September
Aquia Harbour, VA

Average pressure in September - Aquia Harbour, VA
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Aquia Harbour, VA

Average wind speed in September - Aquia Harbour, VA
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Aquia Harbour, VA

Average humidity in September - Aquia Harbour, VA
  • Average humidity in September: 76%

The months with the highest relative humidity are October and December (78%).
The months with the lowest relative humidity are January, April and July (73%).

Average rainfall in September
Aquia Harbour, VA

Average rainfall in September - Aquia Harbour, VA
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.97").

Average rainfall days in September
Aquia Harbour, VA

Average rainfall days in September - Aquia Harbour, VA
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Aquia Harbour, VA

Average snowfall in September - Aquia Harbour, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Aquia Harbour, VA

Average snowfall days in September - Aquia Harbour, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Aquia Harbour, VA

Average daylight in September / Average sunshine in September - Aquia Harbour, VA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Aquia Harbour, VA

Average sunshine days in September - Aquia Harbour, VA
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in September
Aquia Harbour, VA

Average UV index in September - Aquia Harbour, VA
  • Average UV index in September: 5

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

Average cloud cover in September
Aquia Harbour, VA

Average cloud cover in September - Aquia Harbour, VA
  • Average cloud cover in September: 39

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Aquia Harbour, VA

Average visibility in September - Aquia Harbour, VA
  • Average visibility in September: 5mi

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

Aquia Harbour, Virginia, USA

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