August weather forecast
Myrtle Grove, SC

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Weather in August

August, the last month of the summer in Myrtle Grove, is another tropical month, with an average temperature ranging between min 76.3°F (24.6°C) and max 88.3°F (31.3°C).

Temperature

As July transitions into August, Myrtle Grove records an average high-temperature of a still hot 88.3°F (31.3°C), showing a gentle shift from the preceding month. During August, the temperature tends to dip to an average of 76.3°F (24.6°C) at night.

Heat index

Throughout August, the heat index is appraised at a scorching 104°F (40°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Myrtle Grove, the average relative humidity in August is 76%.

Rainfall

The month with the most rainfall is August, when the rain falls for 22.7 days and typically aggregates up to 4.29" (109mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

In Myrtle Grove, the average length of the day in August is 13h and 19min.
On the first day of the month, sunrise is at 6:34 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:54 am and sunset at 7:45 pm EDT.

Sunshine

The average sunshine in August in Myrtle Grove is 10.7h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In August, a daily UV index of 7 turns into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In Myrtle Grove, 88.3°F (31.3°C) is the average high-temperature and 76.3°F (24.6°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 104°F (40°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 22.7 days and accumulates 4.29" (109mm) of precipitation.

How much does it rain in August?

In August, the rain falls for 22.7 days. Throughout August, 4.29" (109mm) of precipitation is accumulated.

When it does not snow?

March through November are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 19min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:34 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 7:45 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.7h.

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 7.

How high is the UV index in August?

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

Average temperature in August
Myrtle Grove, SC

Average temperature in August - Myrtle Grove, SC
  • Average high temperature in August: 88.3°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in August: 76.3°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

Average pressure in August
Myrtle Grove, SC

Average pressure in August - Myrtle Grove, SC
  • 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 June (29.98"Hg).

Average wind speed in August
Myrtle Grove, SC

Average wind speed in August - Myrtle Grove, SC
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Myrtle Grove, SC

Average humidity in August - Myrtle Grove, SC
  • Average humidity in August: 76%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).

Average rainfall in August
Myrtle Grove, SC

Average rainfall in August - Myrtle Grove, SC
  • Average rainfall in August: 4.29"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in August
Myrtle Grove, SC

Average rainfall days in August - Myrtle Grove, SC
  • Average rainfall days in August: 22.7 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).

Average snowfall days in August
Myrtle Grove, SC

Average snowfall days in August - Myrtle Grove, SC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in August /
Average sunshine in August
Myrtle Grove, SC

Average daylight in August / Average sunshine in August - Myrtle Grove, SC
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • 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 December (Average sunshine: 5h and 36min).

Average sunshine days in August
Myrtle Grove, SC

Average sunshine days in August - Myrtle Grove, SC
  • Average sunshine days in August: 6.1 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).

Average UV index in August
Myrtle Grove, SC

Average UV index in August - Myrtle Grove, SC
  • Average UV index in August: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in August
Myrtle Grove, SC

Average cloud cover in August - Myrtle Grove, SC
  • Average cloud cover in August: 29

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in August
Myrtle Grove, SC

Average visibility in August - Myrtle Grove, SC
  • 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).

Myrtle Grove, South Carolina, USA

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