August weather forecast
Runnymede, SC

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Weather in August

August, the last month of the summer in Runnymede, is another hot month, with an average temperature varying between 75.4°F (24.1°C) and 89.4°F (31.9°C).

Temperature

Runnymede measures an average high-temperature of a still hot 89.4°F (31.9°C) in August, nearly consistent with the preceding month. In August, Runnymede experiences a temperature dip to an average of 75.4°F (24.1°C) at night.

Heat index

The heat index value during August is computed to be an extremely hot 107.6°F (42°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in August is 76%.

Rainfall

August is the month with the most rainfall. Rain falls for 23.4 days and accumulates 6.22" (158mm) of precipitation.

Snowfall

In Runnymede, snow does not fall in March through November.

Daylight

In August, the average length of the day is 13h and 20min.
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 7:46 pm EDT.

Sunshine

The average sunshine in August is 10.6h.

UV index

June 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 vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 7 in August transforms into this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

The average high-temperature, in August, in Runnymede, is 89.4°F (31.9°C), while the average low-temperature is 75.4°F (24.1°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 107.6°F (42°C).

What is the average humidity in August?

The average relative humidity in August is 76%.

What is the wettest month?

August is the month with the most rainfall in Runnymede. Rain falls for 23.4 days and accumulates 6.22" (158mm) of precipitation.

How much does it rain in August?

In Runnymede, during August, the rain falls for 23.4 days and regularly aggregates up to 6.22" (158mm) of precipitation.

When it does not snow?

March through November are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 20min.

When is the sunrise / sunset in August?

In August, on the first day of the month, 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 7:46 pm EDT.

How many hours of sunshine does Runnymede have in August?

In Runnymede, the average sunshine duration in August is 10.6h.

When is the highest UV index?

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

How high is the UV index in August?

In Runnymede, the average daily maximum UV index in August 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
Runnymede, SC

Average temperature in August - Runnymede, SC
  • Average high temperature in August: 89.4°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 (56.8°F).

  • Average low temperature in August: 75.4°F

The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average pressure in August
Runnymede, SC

Average pressure in August - Runnymede, 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).

Average wind speed in August
Runnymede, SC

Average wind speed in August - Runnymede, SC
  • Average wind speed in August: 5.8mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in August
Runnymede, SC

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

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

Average rainfall in August
Runnymede, SC

Average rainfall in August - Runnymede, SC
  • Average rainfall in August: 6.22"

The wettest month (with the highest rainfall) is August (6.22").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in August
Runnymede, SC

Average rainfall days in August - Runnymede, SC
  • Average rainfall days in August: 23.4 days

The month with the highest number of rainy days is August (23.4 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in August
Runnymede, SC

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

The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Runnymede, SC

Average snowfall days in August - Runnymede, 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 April, May, June, July, August, September, October and November (0 days).

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

Average daylight in August / Average sunshine in August - Runnymede, 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
Runnymede, SC

Average sunshine days in August - Runnymede, SC
  • Average sunshine days in August: 5.8 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (5.8 days).

Average UV index in August
Runnymede, SC

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

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

Average cloud cover in August
Runnymede, SC

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

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

Average visibility in August
Runnymede, SC

Average visibility in August - Runnymede, 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).

Runnymede, South Carolina, USA

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