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 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
August, recognised by an average high temperature of 91°F (32.8°C) and a low of 76.8°F (24.9°C), is Williamsburg's warmest month.Heat index
The heat index for August is estimated at a blazing hot 113°F (45°C). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
In August, the average relative humidity is 76%.Rainfall
August is the month with the most rainfall. Rain falls for 18.3 days and accumulates 1.54" (39mm) of precipitation.Daylight
In Williamsburg, the average length of the day in August is 13h and 8min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:16 pm. On the last day of August, sunrise is at 7:03 am and sunset at 7:47 pm EDT.
Sunshine
In Williamsburg, the average sunshine in August is 10.1h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In August, the maximum UV index of 7 suggests this advice:
Ward off overexposure. Defence against solar harm is crucial. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
How hot is it in August?
What is the average humidity in August?
What is the wettest month in Williamsburg?
How much does it rain in August?
How many hours of daylight does Williamsburg have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Williamsburg have in August?
What are the months with the highest UV index?
How high is the UV index in August in Williamsburg?
Average temperature in August
Williamsburg, FL
- Average high temperature in August: 91°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (68.5°F).
- Average low temperature in August: 76.8°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (51.3°F).
Average pressure in August
Williamsburg, FL
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in August
Williamsburg, FL
- Average wind speed in August: 5.1mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in August
Williamsburg, FL
- Average humidity in August: 76%
The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in August
Williamsburg, FL
- Average rainfall in August: 1.54"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is March (0.2").
Average rainfall days in August
Williamsburg, FL
- Average rainfall days in August: 18.3 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is January (4.8 days).
Average daylight in August /
Average sunshine in August
Williamsburg, FL
- Average daylight in August: 13h and 1min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in August
Williamsburg, FL
- Average sunshine days in August: 7.6 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is July (6.6 days).
Average UV index in August
Williamsburg, FL
- Average UV index in August: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in August
Williamsburg, FL
- Average cloud cover in August: 32
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are May and October (Cloud cover 30).
Average visibility in August
Williamsburg, FL
- 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).
Williamsburg, Florida, USA
Weather forecast for your location
2. Allow the app to use your location