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August Weather in Port Sanilac, United States

Last updated: June 24, 2025

In August, the average temperature in Port Sanilac, United States is a pleasant 21°C (70°F). Temperatures can dip to a minimum of 15°C (60°F) and rise to a maximum of 27°C (81°F), providing a comfortable range. Be prepared for some rain, as the area experiences about 82 mm (3.2 in) of precipitation over 10 days. Additionally, the humidity levels can be quite high, averaging around 80%, making for a tropical atmosphere.

August Temperature in Port Sanilac

In August in Port Sanilac, the average temperature is 21°C (70°F). The maximum can reach 27°C (81°F) and the minimum can be as low as 15°C (60°F). This pleasant climate makes Port Sanilac an ideal destination for travelers seeking comfortable weather.

August Weather in Port Sanilac: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Port Sanilac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Sanilac, August typically has an average temperature of 21°C (70°F), with highs reaching up to 27°C (81°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec282732374557687065544134
Data source: Temperature data for Port Sanilac 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 Port Sanilac

In Port Sanilac in August, the total precipitation amount is 82 mm (3.2 in) observed over a span of 10 days.

August Precipitation Trends in Port Sanilac

The chart displays monthly precipitation patterns in Port Sanilac, 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 Port Sanilac, August typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec888779113100777182891369979
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Port Sanilac

In Port Sanilac in August humidity is 80%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can make even short walks feel draining, urging travelers to seek shade or a cool drink frequently.

August Average Humidity in Port Sanilac

This chart illustrates the average monthly humidity levels in Port Sanilac, 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 Port Sanilac 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 Port Sanilac

In Port Sanilac 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 Port Sanilac.

Maximum UV Index Levels in Port Sanilac for August

The chart shows the monthly maximum UV Index (UVI) for Port Sanilac 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 Port Sanilac typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Port Sanilac 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 Port Sanilac Compares to Other Months

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

This table compares monthly weather conditions in Port Sanilac, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)88 mm (3.5 inches)88%low
February Weather-3°C (27°F)87 mm (3.4 inches)87%moderate
March Weather0°C (32°F)79 mm (3.1 inches)85%moderate
April Weather3°C (38°F)113 mm (4.4 inches)86%very high
May Weather7°C (45°F)100 mm (3.9 inches)80%very high
June Weather14°C (58°F)77 mm (3.0 inches)80%very high
July Weather20°C (68°F)71 mm (2.8 inches)80%very high
August Weather21°C (70°F)82 mm (3.2 inches)80%very high
September Weather18°C (65°F)89 mm (3.5 inches)80%high
October Weather12°C (55°F)136 mm (5.3 inches)84%moderate
November Weather5°C (41°F)99 mm (3.9 inches)89%moderate
December Weather1°C (34°F)79 mm (3.1 inches)86%low

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