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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 24°C (76°F). Expect a range of temperatures, with minimums dipping to 13°C (55°F) and maximums soaring to 36°C (96°F). Be prepared for some rain, as 131 mm (5.1 in) of precipitation typically falls over 12 days. The climate is humid, boasting an average humidity level of 80%.

August Temperature in Saint Clair

In August in Saint Clair, the average temperature is 24°C (76°F), with maximums reaching 36°C (96°F) and minimums dropping to as low as 13°C (55°F). This pleasant climate makes Saint Clair an ideal destination for travelers seeking both warmth and comfortable evenings.

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 24°C (76°F), with highs reaching up to 36°C (96°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec333647556675797672594540
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 131 mm (5.1 in) spread over 12 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 131 mm (5.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec76841261301548798131591086958
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 24°C (76°F), this humidity feels like a warm, sticky embrace that can make exploring outdoors quite draining, so it's essential to stay hydrated and take breaks in the shade while traveling.

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.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109753
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 Weather1°C (34°F)76 mm (3.0 inches)82%moderate
February Weather2°C (37°F)84 mm (3.3 inches)80%moderate
March Weather9°C (48°F)126 mm (5.0 inches)80%high
April Weather13°C (55°F)130 mm (5.1 inches)80%very high
May Weather19°C (66°F)154 mm (6.1 inches)82%very high
June Weather24°C (76°F)87 mm (3.4 inches)83%extreme
July Weather26°C (79°F)98 mm (3.8 inches)81%extreme
August Weather24°C (76°F)131 mm (5.1 inches)80%very high
September Weather22°C (72°F)59 mm (2.3 inches)76%very high
October Weather15°C (59°F)108 mm (4.3 inches)76%high
November Weather7°C (45°F)69 mm (2.7 inches)85%moderate
December Weather4°C (40°F)58 mm (2.3 inches)86%moderate

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