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August Weather in Stephenville, United States

Last updated: June 24, 2025

In Stephenville, United States during August, the average temperature reaches a warm 29°C (85°F). It can vary from a minimum of 18°C (65°F) to a sweltering maximum of 41°C (107°F). Expect 73 mm (2.9 in) of precipitation over 8 days, with an average humidity of 67%, making for a truly tropical climate!

August Temperature in Stephenville

In August in Stephenville, the average temperature is 29°C (85°F), with maximums reaching up to 41°C (107°F) and minimums dropping as low as 18°C (65°F). This warm climate makes Stephenville an ideal destination for travelers seeking sunny weather and outdoor activities.

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

The chart illustrates August temperature patterns in Stephenville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stephenville, August typically has an average temperature of 29°C (85°F), with highs reaching up to 41°C (107°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec474960667482858578675651
Data source: Temperature data for Stephenville 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 Stephenville

In Stephenville in August, the precipitation amount is 73 mm (2.9 in) over a span of 8 days.

August Precipitation Trends in Stephenville

The chart displays monthly precipitation patterns in Stephenville, 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 Stephenville, August typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec42708273109644373861003737
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Stephenville

In Stephenville in August, humidity is 67%. With an average temperature of 29°C (85°F), this humidity feels like a warm embrace, making travel feel sticky and heavy while adding a layer of intensity to every step.

August Average Humidity in Stephenville

This chart illustrates the average monthly humidity levels in Stephenville, 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 Stephenville is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Stephenville

In Stephenville 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 Stephenville.

Maximum UV Index Levels in Stephenville for August

The chart shows the monthly maximum UV Index (UVI) for Stephenville 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 Stephenville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Stephenville 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 Stephenville Compares to Other Months

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

This table compares monthly weather conditions in Stephenville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)41 mm (1.6 inches)77%moderate
February Weather9°C (49°F)69 mm (2.7 inches)76%high
March Weather16°C (60°F)82 mm (3.2 inches)74%very high
April Weather19°C (66°F)73 mm (2.9 inches)75%very high
May Weather24°C (75°F)109 mm (4.3 inches)80%extreme
June Weather28°C (82°F)64 mm (2.5 inches)80%extreme
July Weather30°C (86°F)43 mm (1.7 inches)75%extreme
August Weather29°C (85°F)73 mm (2.9 inches)67%extreme
September Weather26°C (79°F)86 mm (3.4 inches)64%very high
October Weather20°C (67°F)100 mm (3.9 inches)70%very high
November Weather14°C (57°F)37 mm (1.5 inches)82%high
December Weather11°C (52°F)37 mm (1.5 inches)85%moderate

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