August weather forecast
Santee, SC

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Weather in August

The last month of the summer, August, is also a hot month in Santee, South Carolina, with an average temperature fluctuating between 72.1°F (22.3°C) and 89.2°F (31.8°C).

Temperature

The arrival of August marks a slight shift to an average high-temperature of a still hot 89.2°F (31.8°C) from July's 90.5°F (32.5°C). During the month of August, Santee anticipates a mean low-temperature of 72.1°F (22.3°C).

Heat index

The heat index in August is evaluated at a blisteringly hot 107.6°F (42°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

May, August, September and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

August is the month with the most rainfall. Rain falls for 21 days and accumulates 3.94" (100mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In Santee, the average length of the day in August is 13h and 22min.
On the first day of the month, sunrise is at 6:35 am and sunset at 8:21 pm. On the last day of August, sunrise is at 6:55 am and sunset at 7:48 pm EDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

June 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 vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 7 suggests this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

During August, Santee experiences an average high-temperature of 89.2°F (31.8°C) and a low-temperature of 72.1°F (22.3°C). 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 evaluated at 107.6°F (42°C).

What is the most humid month?

May, August, September and December, with an average relative humidity of 77%, are most humid months.

What is the average humidity in August?

In Santee, the average relative humidity in August is 77%.

What is the rainiest month?

The month with the most rainfall in Santee is August, when the rain falls for 21 days and typically aggregates up to 3.94" (100mm) of precipitation.

How many days does it rain in August?

In Santee, South Carolina, during August, the rain falls for 21 days and regularly aggregates up to 3.94" (100mm) of precipitation.

When it does not snow?

March through December are months without snowfall.

How many hours of daylight does Santee have in August?

In August, the average day length is 13h and 22min.

When is the sunrise / sunset in August in Santee?

On the first day of August, sunrise is at 6:35 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 7:48 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.3h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index intensity in August?

In Santee, the average daily maximum UV index in August is 7. A UV Index value 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
Santee, SC

Average temperature in August - Santee, SC
  • Average high temperature in August: 89.2°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (54.9°F).

  • Average low temperature in August: 72.1°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in August
Santee, SC

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in August
Santee, SC

Average wind speed in August - Santee, SC
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in August
Santee, SC

Average humidity in August - Santee, SC
  • Average humidity in August: 77%

The months with the highest relative humidity are May, August, September and December (77%).
The months with the lowest relative humidity are January and November (72%).

Average rainfall in August
Santee, SC

Average rainfall in August - Santee, SC
  • Average rainfall in August: 3.94"

The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is November (1.69").

Average rainfall days in August
Santee, SC

Average rainfall days in August - Santee, SC
  • Average rainfall days in August: 21 days

The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in August
Santee, SC

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

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in August
Santee, SC

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

The months with the highest number of snowfall days are January and February (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
Santee, SC

Average daylight in August / Average sunshine in August - Santee, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in August
Santee, SC

Average sunshine days in August - Santee, SC
  • Average sunshine days in August: 7.9 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (7.9 days).

Average UV index in August
Santee, SC

Average UV index in August - Santee, SC
  • Average UV index in August: 7

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

Average cloud cover in August
Santee, SC

Average cloud cover in August - Santee, SC
  • Average cloud cover in August: 34

The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in August
Santee, SC

Average visibility in August - Santee, 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).

Santee, South Carolina, USA

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