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August Weather in Myrtle, United States

Last updated: June 24, 2025

In August, the average temperature in Myrtle, United States is a pleasant 26°C (80°F). Expect minimums dipping to 17°C (62°F) and maximums soaring to 36°C (98°F). With an average precipitation of 113 mm (4.4 in) over 13 days, the month brings a fair share of rain, coupled with a humidity level of 73% that keeps the air feeling warm and inviting.

August Temperature in Myrtle

In August in Myrtle, the average temperature is 26°C (80°F). Maximums can reach 36°C (98°F), and minimums can be as low as 17°C (62°F). This climate makes Myrtle an ideal destination for outdoor activities and exploration, so pack accordingly to enjoy your trip!

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

The chart illustrates August temperature patterns in Myrtle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Myrtle, August typically has an average temperature of 26°C (80°F), with highs reaching up to 36°C (98°F) and lows dropping to around 17°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec444856617278818076655148
Data source: Temperature data for Myrtle 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 Myrtle

In Myrtle in August, the precipitation amount is 113 mm (4.4 in) over the course of 13 days.

August Precipitation Trends in Myrtle

The chart displays monthly precipitation patterns in Myrtle, 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 Myrtle, August typically receives around 113 mm (4.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec12018815714611013311811311610679150
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Myrtle

In Myrtle in August, humidity is 73%. With an average temperature of 26°C (80°F), this humidity feels like a warm embrace that clings to your skin, making outdoor exploration a bit sticky but still inviting, perfect for leisurely strolls in the shade or refreshing breaks by the water.

August Average Humidity in Myrtle

This chart illustrates the average monthly humidity levels in Myrtle, 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 Myrtle is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%81%83%83%80%74%70%73%85%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Myrtle

In Myrtle in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Myrtle.

Maximum UV Index Levels in Myrtle for August

The chart shows the monthly maximum UV Index (UVI) for Myrtle 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 Myrtle typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109764
Data source: Myrtle 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 Myrtle Compares to Other Months

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

This table compares monthly weather conditions in Myrtle, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)120 mm (4.7 inches)86%moderate
February Weather9°C (48°F)188 mm (7.4 inches)85%high
March Weather14°C (57°F)157 mm (6.2 inches)84%very high
April Weather16°C (62°F)146 mm (5.8 inches)81%very high
May Weather22°C (72°F)110 mm (4.3 inches)83%extreme
June Weather26°C (78°F)133 mm (5.2 inches)83%extreme
July Weather27°C (81°F)118 mm (4.6 inches)80%extreme
August Weather26°C (80°F)113 mm (4.4 inches)73%very high
September Weather24°C (76°F)116 mm (4.6 inches)70%very high
October Weather18°C (65°F)106 mm (4.2 inches)73%high
November Weather11°C (51°F)79 mm (3.1 inches)85%high
December Weather9°C (48°F)150 mm (5.9 inches)88%moderate

Compare Myrtle's Climate with Cities Worldwide