Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average sea temperature in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The average high-temperature during August is a warm 84.7°F (29.3°C), almost matching the conditions of the preceding month. In Norfolk, the average temperature during the nights of August drops to a pleasant 73°F (22.8°C).Heat index
During August, the heat index is estimated at a hot 93.2°F (34°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Heat index determinations are made taking into account the shade and light air movements. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In August, the average relative humidity is 75%.Rainfall
August is the month with the most rainfall. Rain falls for 16.9 days and accumulates 2.52" (64mm) of precipitation.Snowfall
In Norfolk, snow does not fall in April through October.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 80.1°F (26.7°C).Note: Water temperatures ranging between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.
Daylight
In Norfolk, the average length of the day in August is 13h and 32min.On the first day of the month, sunrise is at 6:11 am and sunset at 8:11 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:34 pm EDT.
Sunshine
In August, the average sunshine is 10.6h.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In August, an average UV index of 7 transforms into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in August?
What is the average humidity in August?
What is the rainiest month?
How many days does it rain in August?
When it does not snow?
When is the ocean warmest?
What is the ocean temperature in August?
How many hours of daylight does Norfolk have in August?
When are sunrise and sunset in August?
How many hours of sunshine does Norfolk have in August?
What are the months with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Norfolk, VA
- Average high temperature in August: 84.7°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in August: 73°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure in August
Norfolk, VA
- Average pressure in August: 29.99"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 August
Norfolk, VA
- Average wind speed in August: 7.5mph
The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).
Average humidity in August
Norfolk, VA
- Average humidity in August: 75%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and November (74%).
Average rainfall in August
Norfolk, VA
- Average rainfall in August: 2.52"
The wettest month (with the highest rainfall) is August (2.52").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days in August
Norfolk, VA
- Average rainfall days in August: 16.9 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in August
Norfolk, VA
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Norfolk, VA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in August
Norfolk, VA
- Average sea temperature in August: 80°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 August /
Average sunshine in August
Norfolk, VA
- Average daylight in August: 13h and 3min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 10h and 4min
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 24min).
Average sunshine days in August
Norfolk, VA
- Average sunshine days in August: 10.8 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in August
Norfolk, VA
- Average UV index in August: 7
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 August
Norfolk, VA
- Average cloud cover in August: 29
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in August
Norfolk, VA
- Average visibility in August: 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).
Norfolk, Virginia, USA
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