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August Weather in Saint Clair, United States

Last updated: June 24, 2025

In August, the average temperature in Saint Clair, United States is a pleasant 22°C (73°F). Temperatures can vary, with a minimum of 12°C (53°F) and a maximum reaching 31°C (89°F). Expect 80 mm (3.2 in) of precipitation spread over about 10 days, and be prepared for high humidity levels at 80%.

August Temperature in Saint Clair

In August in Saint Clair, the average temperature is 22°C (73°F). The maximum can reach 31°C (89°F), and the minimum can be as low as 12°C (53°F). This weather makes it an ideal time for outdoor activities and exploring the area comfortably.

August Weather in Saint Clair: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Saint Clair, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Clair, August typically has an average temperature of 22°C (73°F), with highs reaching up to 31°C (89°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec272836455768747266544033
Data source: Temperature data for Saint Clair 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 Saint Clair

In Saint Clair in August, the precipitation amount is 80 mm (3.2 in) over a span of 10 days.

August Precipitation Trends in Saint Clair

The chart displays monthly precipitation patterns in Saint Clair, 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 Saint Clair, August typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec70737097105938280771138263
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Saint Clair

In Saint Clair in August, humidity is 80%. With an average temperature of 22°C (73°F), this humidity feels like a warm blanket enveloping you, making travel feel a bit sluggish and sticky, yet the vibrant atmosphere invites exploration at a slower pace.

August Average Humidity in Saint Clair

This chart illustrates the average monthly humidity levels in Saint Clair, 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 Saint Clair is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint Clair

In Saint Clair in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Saint Clair.

Maximum UV Index Levels in Saint Clair for August

The chart shows the monthly maximum UV Index (UVI) for Saint Clair 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 Saint Clair typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997542
Data source: Saint Clair 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 Saint Clair Compares to Other Months

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

This table compares monthly weather conditions in Saint Clair, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)70 mm (2.8 inches)88%low
February Weather-2°C (29°F)73 mm (2.9 inches)87%moderate
March Weather2°C (36°F)70 mm (2.7 inches)85%moderate
April Weather7°C (46°F)97 mm (3.8 inches)86%very high
May Weather14°C (58°F)105 mm (4.1 inches)80%very high
June Weather20°C (69°F)93 mm (3.6 inches)80%very high
July Weather23°C (74°F)82 mm (3.2 inches)80%very high
August Weather22°C (73°F)80 mm (3.2 inches)80%very high
September Weather19°C (66°F)77 mm (3.0 inches)80%high
October Weather12°C (55°F)113 mm (4.5 inches)84%moderate
November Weather4°C (40°F)82 mm (3.2 inches)89%moderate
December Weather0°C (33°F)63 mm (2.5 inches)86%low

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