August weather forecast
Chatham, VA

Share

Weather in August

The last month of the summer, August, is also a hot month in Chatham, Virginia, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 64.4°F (18°C).

Temperature

An average high-temperature of a still hot 86.7°F (30.4°C) marks August, exhibiting a close resemblance to the conditions in July. Chatham reports a marked divergence from daytime peaks throughout August, with lows averaging at a comfortable 64.4°F (18°C).

Heat index

The heat index in August is appraised at a very hot 98.6°F (37°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In August, the average relative humidity is 72%.

Rainfall

In Chatham, in August, during 16.4 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Chatham, during the entire year, the rain falls for 158.8 days and collects up to 30.91" (785mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August in Chatham is 13h and 32min.
On the first day of the month, sunrise is at 6:23 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:48 am and sunset at 7:46 pm EDT.

Sunshine

In August, the average sunshine is 10.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In August, the maximum UV index of 6 suggests these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

August temperatures vary between a high-temperature of 86.7°F (30.4°C) and a low-temperature of 64.4°F (18°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 98.6°F (37°C).

What is the average humidity in August?

The average relative humidity in August is 72%.

How many days does it rain in August?

In Chatham, in August, it is raining for 16.4 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow in Chatham?

In Chatham, snow does not fall in May through October.

What is the average length of the day in August?

In Chatham, the average day length in August is 13h and 32min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:23 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:46 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.1h.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Chatham, VA

Average temperature in August - Chatham, VA
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in August: 64.4°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in August
Chatham, VA

Average pressure in August - Chatham, VA
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in August
Chatham, VA

Average wind speed in August - Chatham, VA
  • Average wind speed in August: 4.3mph

The windiest months (with the highest average wind speed) are February and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in August
Chatham, VA

Average humidity in August - Chatham, VA
  • Average humidity in August: 72%

The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (69%).

Average rainfall in August
Chatham, VA

Average rainfall in August - Chatham, VA
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in August
Chatham, VA

Average rainfall days in August - Chatham, VA
  • Average rainfall days in August: 16.4 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in August
Chatham, VA

Average snowfall in August - Chatham, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Chatham, VA

Average snowfall days in August - Chatham, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Chatham, VA

Average daylight in August / Average sunshine in August - Chatham, 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 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in August
Chatham, VA

Average sunshine days in August - Chatham, VA
  • Average sunshine days in August: 11.9 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in August
Chatham, VA

Average UV index in August - Chatham, VA
  • Average UV index in August: 6

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, February and December (UV index 2).

Average cloud cover in August
Chatham, VA

Average cloud cover in August - Chatham, VA
  • Average cloud cover in August: 34

The months with the most cloud cover are February and March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 31).

Average visibility in August
Chatham, VA

Average visibility in August - Chatham, VA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Chatham, Virginia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location