August weather forecast
Bluffton, SC

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The iconic historic Church of the Cross in Bluffton, South Carolina, set in a beautiful garden park
The iconic historic Church of the Cross in Bluffton, South Carolina, set in a beautiful garden park

Weather in August

As August rolls in, Bluffton's weather makes a subtle shift from July's extreme conditions. Incidentally, the mercury still lingers between high temperatures of 77.5°F (25.3°C) and 87.1°F (30.6°C). This month, Bluffton encounters the highest annual rainfall, a substantial 6.06" (154mm). The high precipitation, coupled with the extreme temperatures, intensifies the humidity levels as the peak summer season persists. Despite this, August in Bluffton has its charm, with on-going sunlit hours and warmth that encourages visitors and locals to explore the outdoor ambiance.

Temperature

The initiation of August in Bluffton records an average high-temperature of a still tropical 87.1°F (30.6°C), displaying a near consistency with the previous month. An average low-temperature of 77.5°F (25.3°C) is recorded during the nights in August in Bluffton.

Heat index

During August, the heat index is appraised at a sweltering 100.4°F (38°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Bluffton, South Carolina, the average relative humidity in August is 76%.

Rainfall

August is the month with the most rainfall. Rain falls for 25 days and accumulates 6.06" (154mm) of precipitation.

Snowfall

In Bluffton, snow does not fall in February through December.

Daylight

The average length of the day in August is 13h and 18min.
On the first day of the month, sunrise is at 6:38 am and sunset at 8:20 pm. On the last day of August, in Bluffton, sunrise is at 6:58 am and sunset at 7:48 pm EDT.

Sunshine

In August, the average sunshine is 10.8h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Feb 13, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

How hot is August in Bluffton?

In Bluffton, in August, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 77.5°F (25.3°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in August is appraised at 100.4°F (38°C).

What is the average humidity in August in Bluffton?

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

What is the rainiest month in Bluffton?

The month with the most rainfall in Bluffton is August, when the rain falls for 25 days and typically aggregates up to 6.06" (154mm) of precipitation.

How many days does it rain in August in Bluffton?

In Bluffton, in August, it is raining for 25 days, with typically 6.06" (154mm) of accumulated precipitation.

When it does not snow in Bluffton?

In Bluffton, snow does not fall in February through December.

How many hours of daylight does Bluffton have in August?

In August, the average day length is 13h and 18min.

When is the sunrise / sunset in August in Bluffton?

In August, on the first day of the month, sunrise is at 6:38 am and sunset at 8:20 pm. On the last day of the month, in Bluffton, sunrise is at 6:58 am and sunset at 7:48 pm EDT.

How long on average sun shines in August in Bluffton?

In August, the average sunshine duration in Bluffton, South Carolina, is 10.8h.

When is the highest UV index in Bluffton?

May through August, with an average maximum UV index of 7, are months with the highest UV index in Bluffton, South Carolina.

How high is the UV index in August in Bluffton?

The average daily maximum UV index in August in Bluffton is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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
Bluffton, SC

Average temperature in August - Bluffton, SC
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (57.4°F).

  • Average low temperature in August: 77.5°F

The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (46°F).

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Average pressure in August
Bluffton, SC

Average pressure in August - Bluffton, SC
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

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Average wind speed in August
Bluffton, SC

Average wind speed in August - Bluffton, SC
  • Average wind speed in August: 7.8mph

The windiest months (with the highest average wind speed) are January, March and April (9.6mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in August
Bluffton, SC

Average humidity in August - Bluffton, SC
  • Average humidity in August: 76%

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

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Average rainfall in August
Bluffton, SC

Average rainfall in August - Bluffton, SC
  • Average rainfall in August: 6.06"

The wettest month (with the highest rainfall) is August (6.06").
The driest month (with the least rainfall) is January (1.02").

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Average rainfall days in August
Bluffton, SC

Average rainfall days in August - Bluffton, SC
  • Average rainfall days in August: 25 days

The month with the highest number of rainy days is August (25 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in August
Bluffton, SC

Average snowfall in August - Bluffton, SC
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Bluffton, SC

Average snowfall days in August - Bluffton, SC
  • Average snowfall days in August: 0 days

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

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Average daylight in August /
Average sunshine in August
Bluffton, SC

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in August: 10h and 5min

The months with the most sunshine are June and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in August
Bluffton, SC

Average sunshine days in August - Bluffton, SC
  • Average sunshine days in August: 2.8 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (2.8 days).

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Average UV index in August
Bluffton, SC

Average UV index in August - Bluffton, 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).

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Average cloud cover in August
Bluffton, SC

Average cloud cover in August - Bluffton, SC
  • Average cloud cover in August: 27

The months with the most cloud cover are February and December (Cloud cover 38).
The months with the least cloud cover are June and July (Cloud cover 25).

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Average visibility in August
Bluffton, SC

Average visibility in August - Bluffton, 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).

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Bluffton, South Carolina, USA

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