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August Weather in Round Rock, United States

Last updated: June 24, 2025

In August, the average temperature in Round Rock, United States is a warm 30°C (86°F), with a comfortable minimum of 19°C (67°F) and a scorching maximum of 41°C (105°F). Expect about 103 mm (4.0 in) of precipitation spread over 7 days, contributing to an average humidity of 63%. Enjoy the vibrant climate while staying prepared for occasional rain!

August Temperature in Round Rock

In August in Round Rock, the average temperature is 30°C (86°F). Maximums can reach 41°C (105°F), while minimums can drop as low as 19°C (67°F). Travelers should prepare for warm weather and stay hydrated during their visit.

August Weather in Round Rock: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Round Rock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Round Rock, August typically has an average temperature of 30°C (86°F), with highs reaching up to 41°C (105°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec515363687682858680705954
Data source: Temperature data for Round Rock 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 Round Rock

In Round Rock in August, the precipitation amount is 103 mm (4.0 in) over a span of 7 days.

August Precipitation Trends in Round Rock

The chart displays monthly precipitation patterns in Round Rock, 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 Round Rock, August typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec476067881557669103109904669
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Round Rock

In Round Rock in August humidity is 63%. With an average temperature of 30°C (86°F), this humidity feels like a warm embrace, making traveling a bit sticky but still enjoyable as long as you stay hydrated and take frequent breaks in the shade.

August Average Humidity in Round Rock

This chart illustrates the average monthly humidity levels in Round Rock, 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 Round Rock is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Round Rock

In Round Rock 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 Round Rock.

Maximum UV Index Levels in Round Rock for August

The chart shows the monthly maximum UV Index (UVI) for Round Rock 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 Round Rock typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121110965
Data source: Round Rock 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 Round Rock Compares to Other Months

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

This table compares monthly weather conditions in Round Rock, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (51°F)47 mm (1.9 inches)78%moderate
February Weather11°C (53°F)60 mm (2.4 inches)78%very high
March Weather17°C (63°F)67 mm (2.6 inches)77%very high
April Weather20°C (68°F)88 mm (3.5 inches)78%extreme
May Weather25°C (76°F)155 mm (6.1 inches)82%extreme
June Weather28°C (82°F)76 mm (3.0 inches)78%extreme
July Weather30°C (85°F)69 mm (2.7 inches)69%extreme
August Weather30°C (86°F)103 mm (4.0 inches)63%extreme
September Weather26°C (80°F)109 mm (4.3 inches)66%very high
October Weather21°C (70°F)90 mm (3.5 inches)73%very high
November Weather15°C (60°F)46 mm (1.8 inches)84%high
December Weather12°C (55°F)69 mm (2.7 inches)87%moderate

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