September weather forecastAtlantic, VA
September
Weather in September
September, the first month of the autumn in Atlantic, is also a moderately hot month, with an average temperature fluctuating between 67.1°F (19.5°C) and 76.5°F (24.7°C).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a warm 82.4°F (28°C) in August to a still moderately hot 76.5°F (24.7°C). During the nights in September, Atlantic experiences a consistent average temperature of 67.1°F (19.5°C).Humidity
In Atlantic, the average relative humidity in September is 77%.Rainfall
In Atlantic, in September, it is raining for 11.2 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 128 rainfall days, and 16.1" (409mm) of precipitation is accumulated.Snowfall
In Atlantic, Virginia, snow does not fall in April through October.Daylight
In Atlantic, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:46 pm EDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Atlantic, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Atlantic, VA
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in September
Atlantic, VA
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Atlantic, VA
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is August (7.9mph).
Average humidity in September
Atlantic, VA
- Average humidity in September: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (73%).
Average rainfall in September
Atlantic, VA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is May (1.06").
Average rainfall days in September
Atlantic, VA
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Atlantic, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Atlantic, VA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.7 days).
The 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
Atlantic, VA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Atlantic, VA
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (14.7 days).
Average UV index in September
Atlantic, 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 and December (UV index 2).
Average cloud cover in September
Atlantic, VA
- Average cloud cover in September: 33
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Atlantic, VA
- 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).
