August Weather in Greenville, United States

Last updated: June 24, 2025

In August, the average temperature in Greenville, United States reaches a warm 27°C (81°F). You can expect a range of 18°C (65°F) at its coolest to a scorching 39°C (102°F) at the peak. With an average humidity of 78%, the atmosphere can feel quite muggy, especially during the 16 days of rain that bring about 125 mm (4.9 in) of precipitation.

August Temperature in Greenville

In August in Greenville, the average temperature is 27°C (81°F). Maximums can reach 39°C (102°F) and minimums can be as low as 18°C (65°F). This makes it an ideal time for travelers seeking warm weather and a pleasant getaway.

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

The chart illustrates August temperature patterns in Greenville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greenville, August typically has an average temperature of 27°C (81°F), with highs reaching up to 39°C (102°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec505761667479818178705753
Data source: Temperature data for Greenville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Greenville

In Greenville in August, the precipitation amount is 125 mm (4.9 in) spread over 16 days.

August Precipitation Trends in Greenville

The chart displays monthly precipitation patterns in Greenville, 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 Greenville, August typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec1061199912111913611612510710769133
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Greenville

In Greenville in August humidity is 78%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy embrace that makes traveling feel both invigorating and exhausting. Moments spent outside can quickly become clammy and uncomfortable, urging travelers to seek shade and hydration as they explore.

August Average Humidity in Greenville

This chart illustrates the average monthly humidity levels in Greenville, 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 Greenville is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%79%77%74%70%78%78%79%74%83%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Greenville

In Greenville 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 Greenville.

Maximum UV Index Levels in Greenville for August

The chart shows the monthly maximum UV Index (UVI) for Greenville 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 Greenville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110864
Data source: Greenville 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 Greenville Compares to Other Months

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

This table compares monthly weather conditions in Greenville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)106 mm (4.2 inches)83%moderate
February Weather14°C (57°F)119 mm (4.7 inches)82%very high
March Weather16°C (62°F)98 mm (3.9 inches)79%very high
April Weather19°C (66°F)121 mm (4.8 inches)77%extreme
May Weather23°C (74°F)119 mm (4.7 inches)74%extreme
June Weather26°C (79°F)136 mm (5.3 inches)70%extreme
July Weather27°C (81°F)116 mm (4.6 inches)78%extreme
August Weather27°C (81°F)125 mm (4.9 inches)78%extreme
September Weather25°C (78°F)107 mm (4.2 inches)79%very high
October Weather21°C (71°F)107 mm (4.2 inches)74%very high
November Weather14°C (57°F)69 mm (2.7 inches)83%high
December Weather12°C (53°F)133 mm (5.2 inches)86%moderate

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