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August Weather in Mount Pleasant, United States

Last updated: June 24, 2025

In August, the average temperature in Mount Pleasant, United States is a pleasant 20°C (68°F). Visitors can expect a range from a cool 3°C (38°F) to a warm 34°C (93°F). Rainfall is modest, with an average precipitation of 25 mm (1.0 in) spread over 4 days. The air remains comfortably dry, boasting an average humidity of just 34%.

August Temperature in Mount Pleasant

In August in Mount Pleasant, the average temperature is 20°C (68°F). Maximums can reach 34°C (93°F), and minimums can be as low as 3°C (38°F). Be prepared for a range of weather conditions during your travels!

August Weather in Mount Pleasant: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Mount Pleasant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Pleasant, August typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec222432384863706858413323
Data source: Temperature data for Mount Pleasant 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 Mount Pleasant

In Mount Pleasant in August, the precipitation amount is 25 mm (1.0 in) over the course of 4 days.

August Precipitation Trends in Mount Pleasant

The chart displays monthly precipitation patterns in Mount Pleasant, 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 Mount Pleasant, August typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec565960436318422531403653
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Mount Pleasant

In Mount Pleasant in August humidity is 34%. With an average temperature of 20°C (68°F), this humidity feels like a pleasantly mild and comfortable environment for traveling, allowing for enjoyable outdoor activities without an overwhelming stickiness in the air.

August Average Humidity in Mount Pleasant

This chart illustrates the average monthly humidity levels in Mount Pleasant, 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 Mount Pleasant is approximately 34%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%77%70%54%45%37%34%47%67%82%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Mount Pleasant

In Mount Pleasant 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 Mount Pleasant.

Maximum UV Index Levels in Mount Pleasant for August

The chart shows the monthly maximum UV Index (UVI) for Mount Pleasant 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 Mount Pleasant typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110754
Data source: Mount Pleasant 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 Mount Pleasant Compares to Other Months

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

This table compares monthly weather conditions in Mount Pleasant, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)56 mm (2.2 inches)87%moderate
February Weather-5°C (24°F)59 mm (2.3 inches)88%high
March Weather0°C (32°F)60 mm (2.4 inches)77%very high
April Weather3°C (38°F)43 mm (1.7 inches)69%very high
May Weather9°C (49°F)63 mm (2.5 inches)54%extreme
June Weather17°C (63°F)18 mm (0.7 inches)45%extreme
July Weather21°C (70°F)42 mm (1.7 inches)37%extreme
August Weather20°C (68°F)25 mm (1.0 inches)34%extreme
September Weather15°C (59°F)31 mm (1.2 inches)47%very high
October Weather5°C (42°F)40 mm (1.6 inches)67%high
November Weather1°C (34°F)36 mm (1.4 inches)82%moderate
December Weather-5°C (23°F)53 mm (2.1 inches)87%moderate

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