August weather forecast
Seneca, SC

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Weather in August

The last month of the summer, August, is also a hot month in Seneca, South Carolina, with an average temperature ranging between max 88°F (31.1°C) and min 67.3°F (19.6°C).

Temperature

The onset of August brings an average high-temperature of a still hot 88°F (31.1°C), nearly matching the July temperature. Seneca experiences a mean low-temperature of 67.3°F (19.6°C) during August.

Heat index

For August, the heat index is computed to be a very hot 100.4°F (38°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. 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 remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in August is 72%.

Rainfall

In Seneca, in August, it is raining for 16.8 days, with typically 3.39" (86mm) of accumulated precipitation. Throughout the year, there are 164.1 rainfall days, and 37.09" (942mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 25min.
On the first day of August, sunrise is at 6:42 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 7:59 pm EDT.

Sunshine

In Seneca, the average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Seneca in August?

The high-temperature, in August, in Seneca, records 88°F (31.1°C), while the low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 100.4°F (38°C).

What is the average humidity in August?

In Seneca, the average relative humidity in August is 72%.

How many days does it rain in August?

In Seneca, South Carolina, in August, it is raining for 16.8 days, with typically 3.39" (86mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Seneca have in August?

In Seneca, the average day length in August is 13h and 25min.

When are sunrise and sunset in August in Seneca?

On the first day of August, sunrise is at 6:42 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 7:59 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.3h.

When is the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Seneca, SC

Average temperature in August - Seneca, SC
  • Average high temperature in August: 88°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 (49.6°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

Average pressure in August
Seneca, SC

Average pressure in August - Seneca, SC
  • Average pressure in August: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in August
Seneca, SC

Average wind speed in August - Seneca, SC
  • Average wind speed in August: 4.1mph

The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in August
Seneca, SC

Average humidity in August - Seneca, SC
  • Average humidity in August: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall in August
Seneca, SC

Average rainfall in August - Seneca, SC
  • Average rainfall in August: 3.39"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in August
Seneca, SC

Average rainfall days in August - Seneca, SC
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in August
Seneca, SC

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

The month with the highest snowfall is December (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Seneca, SC

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

The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in August
Seneca, SC

Average sunshine days in August - Seneca, SC
  • Average sunshine days in August: 11.6 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10.5 days).

Average UV index in August
Seneca, SC

Average UV index in August - Seneca, SC
  • 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 and December (UV index 2).

Average cloud cover in August
Seneca, SC

Average cloud cover in August - Seneca, SC
  • Average cloud cover in August: 30

The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 27).

Average visibility in August
Seneca, SC

Average visibility in August - Seneca, 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).

Seneca, South Carolina, USA

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