Myrtle Beach
South Carolina, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Myrtle Beach, SC

The glorious Myrtle Beach in South Carolina, with lit city buildings
The glorious Myrtle Beach in South Carolina, with lit city buildings
August, the last month of the summer, in Myrtle Beach, is another tropical month, with average temperature ranging between max 86.9°F (30.5°C) and min 71.1°F (21.7°C).

Temperature

In Myrtle Beach, the average high-temperature is essentially the same as in July - a still hot 86.9°F (30.5°C). In August, in Myrtle Beach, the average low-temperature is 71.1°F (21.7°C).

Rainfall

In Myrtle Beach, South Carolina, during August, the rain falls for 10.6 days and regularly aggregates up to 6.2" (157.2mm) of precipitation. In Myrtle Beach, South Carolina, during the entire year, the rain falls for 92.8 days and collects up to 48.3" (1225.7mm) of precipitation.

Snowfall

Throughout the year, 0.7" (17.7mm) of snow is accumulated.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 82.9°F (28.3°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In August, the average length of the day in Myrtle Beach is 13.4h.

Sunshine

In August, the average sunshine is 8h.

UV index

Months with the highest UV index in Myrtle Beach are June through August, with an average maximum UV index of 10. A UV Index value of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV radiation for the average person.
The daily maximum UV index of 10 in August interpret into the following advice:
Take extra precautions. Protection against sun damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in August in Myrtle Beach?

In August, the average high-temperature is 86.9°F (30.5°C), and the average low-temperature is 71.1°F (21.7°C).

How many days does it rain in August in Myrtle Beach?

In August, in Myrtle Beach, the rain falls for 10.6 days. Throughout August, 6.2" (157.2mm) of precipitation is accumulated.

What is the month with the warmest ocean in Myrtle Beach?

The month with the warmest seawater is August, with an average ocean temperature of 82.9°F (28.3°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the water temperature in August in Myrtle Beach?

In Myrtle Beach, the average seawater temperature in August is 82.9°F (28.3°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Myrtle Beach have in August?

In August, the average length of the day is 13.4h.

How long on average sun shines in August in Myrtle Beach?

In Myrtle Beach, South Carolina, the average sunshine in August is 8h.

What are the months with the highest UV index in Myrtle Beach?

Months with the highest UV index in Myrtle Beach are June through August, with an average maximum UV index of 10.

How high is the UV index in August in Myrtle Beach?

In Myrtle Beach, South Carolina, the average daily maximum UV index in August is 10. A UV Index of 8 to 10 symbolizes a very high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in August - Myrtle Beach, SC
  • Average high temperature in August: 86.9°F

The warmest month (with the highest average high temperature) is July (87.7°F).
The month with the lowest average high temperature is January (56.3°F).

  • Average low temperature in August: 71.1°F

The month with the highest average low temperature is July (72.8°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).

Average rainfall in August - Myrtle Beach, SC
  • Average rainfall in August: 6.2"

The wettest month (with the highest rainfall) is September (6.3").
Driest months (with the lowest rainfall) are April and November (2.5").

Average rainfall days in August - Myrtle Beach, SC
  • Average rainfall days in August: 10.6 days

The month with the highest number of rainy days is August (10.6 days).
The month with the lowest number of rainy days is November (5.7 days).

Average snowfall in August - Myrtle Beach, SC
  • Average snowfall in August: 0"

The month with the highest snowfall is December (0.6").
Months with the lowest snowfall are January, March, April, May, June, July, August, September, October and November (0").

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

The month with the highest number of snowfall days is December (0.1 days).
Months with the lowest number of snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in August - Myrtle Beach, SC
  • Average sea temperature in August: 82.9°F

The best month for swimming (with the highest average sea temperature) is August (82.9°F).
The coldest month (with the lowest average sea temperature) is March (57.7°F).

Average daylight in August / Average sunshine in August - Myrtle Beach, SC
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 8h

Months with most sunshine are April, May, June and July (Average sunshine: 9h).
Months with least sunshine are January, November and December (Average sunshine: 6).

Average UV index in August - Myrtle Beach, SC
  • Average UV index in August: 10

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).