August Weather in Harleyville, United States

Last updated: June 24, 2025

In Harleyville, United States, the average temperature in August reaches a warm 27°C (81°F), with minimums dipping to 18°C (65°F) and soaring to a maximum of 38°C (102°F). Be prepared for some rain, as the region experiences approximately 144 mm (5.7 in) of precipitation over 20 days, accompanied by a high average humidity of 81%.

August Temperature in Harleyville

In August in Harleyville, the average temperature is 27°C (81°F). Maximum temperatures can reach up to 38°C (102°F), while minimums can drop as low as 18°C (65°F). This makes Harleyville a warm and inviting destination for travelers looking to enjoy pleasant weather.

August Weather in Harleyville: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Harleyville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harleyville, August typically has an average temperature of 27°C (81°F), with highs reaching up to 38°C (102°F) and lows dropping to around 18°C (65°F).

Data source: Temperature data for Harleyville generated using information from the Copernicus Climate Change Service.

August Precipitation in Harleyville

In Harleyville in August, the precipitation amount reaches 144 mm (5.7 in) over the course of 20 days.

August Precipitation Trends in Harleyville

The chart displays monthly precipitation patterns in Harleyville, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Harleyville, August typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 20 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Harleyville

In Harleyville in August humidity is 81%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy blanket enveloping you, making travel quite uncomfortable as it can quickly drain your energy and require frequent hydration breaks.

August Average Humidity in Harleyville

This chart illustrates the average monthly humidity levels in Harleyville, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Harleyville is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Harleyville

In Harleyville in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Harleyville.

Maximum UV Index Levels in Harleyville for August

The chart shows the monthly maximum UV Index (UVI) for Harleyville in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Harleyville typically reaches 11, which falls under the extreme exposure category.

Data source: Harleyville August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Harleyville Compares to Other Months

Weather in Harleyville varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Harleyville, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Harleyville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	73 mm (2.9 inches)	86%	moderate
February Weather	13°C (56°F)	98 mm (3.9 inches)	81%	high
March Weather	15°C (59°F)	75 mm (3.0 inches)	81%	very high
April Weather	19°C (66°F)	109 mm (4.3 inches)	79%	very high
May Weather	23°C (74°F)	96 mm (3.8 inches)	75%	extreme
June Weather	26°C (79°F)	122 mm (4.8 inches)	75%	extreme
July Weather	27°C (82°F)	166 mm (6.6 inches)	80%	extreme
August Weather	27°C (81°F)	144 mm (5.7 inches)	81%	extreme
September Weather	25°C (78°F)	117 mm (4.6 inches)	83%	very high
October Weather	21°C (70°F)	64 mm (2.5 inches)	78%	very high
November Weather	14°C (57°F)	66 mm (2.6 inches)	85%	high
December Weather	11°C (53°F)	135 mm (5.3 inches)	87%	moderate