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 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
The beginning of September brings a slight decrease in the average high-temperature, transitioning from 84.2°F (29°C) in August to a still moderately hot 78.8°F (26°C). Poquoson experiences an average low-temperature reading of 68.2°F (20.1°C) throughout September.Humidity
In September, the average relative humidity is 75%.Rainfall
In Poquoson, during September, the rain falls for 13.4 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Poquoson, during the entire year, the rain falls for 161.2 days and collects up to 28.43" (722mm) of precipitation.Snowfall
In Poquoson, snow does not fall in April through November.Daylight
In Poquoson, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:36 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:49 pm EDT.
Sunshine
The average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Poquoson have in September?
How high is the UV index in September?
Average temperature in September
Poquoson, 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
Poquoson, 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
Poquoson, 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
Poquoson, 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
Poquoson, 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
Poquoson, 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
Poquoson, 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
Poquoson, 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 daylight in September /
Average sunshine in September
Poquoson, 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
Poquoson, 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
Poquoson, 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
Poquoson, 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
Poquoson, 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).
Poquoson, Virginia, USA
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