Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature in Newport News marginally decreases from 84.2°F (29°C) in August to a still warm 78.8°F (26°C). In September, Newport News encounters an average low-temperature of 68.2°F (20.1°C) during the night.Humidity
The average relative humidity in September in Newport News, Virginia, is 75%.Rainfall
In September, the rain falls for 13.4 days. Throughout September, 2.76" (70mm) of precipitation is accumulated. Throughout the year, in Newport News, there are 161.2 rainfall days, and 28.43" (722mm) of precipitation is accumulated.Snowfall
In Newport News, snow does not fall in April through November.Ocean temperature
In September, the average ocean temperature in Newport News is 75.6°F (24.2°C).Note: Taking into account a person's sensitivity to the cold, given sunshine, wind, and air temperature, swimming in 75.6°F (24.2°C) might be pleasant. (FYI: The water temperature set for the Olympic swimming event is between 77°F (25°C) and 82.4°F (28°C).)
Daylight
In Newport News, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:37 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:50 pm EDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during September translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.
Frequently asked questions
What is the average September temperature in Newport News?
What is the average humidity in September in Newport News?
How much does it rain in Newport News in September?
When it does not snow in Newport News?
How warm is the water in September in Newport News?
How many hours of daylight does Newport News have in September?
When are sunrise and sunset in September in Newport News?
How long on average sun shines in September in Newport News?
What is the UV index intensity in September in Newport News?
Average temperature in September
Newport News, VA
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in September: 68.2°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in September
Newport News, VA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Newport News, VA
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (8mph).
Average humidity in September
Newport News, VA
- Average humidity in September: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Newport News, VA
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in September
Newport News, VA
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Newport News, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Newport News, VA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Newport News, VA
- Average sea temperature in September: 75.6°F
The best month for swimming (with the highest average sea temperature) is August (80°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).
Average daylight in September /
Average sunshine in September
Newport News, VA
- Average daylight in September: 12h and 2min
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 42min).
- Average sunshine in September: 9h and 2min
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 12min).
Average sunshine days in September
Newport News, VA
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is August (10.5 days).
Average UV index in September
Newport News, VA
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Newport News, VA
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in September
Newport News, 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).
Newport News, Virginia, USA
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