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August Weather in Port Williams, Canada

Last updated: June 18, 2025

In August, the average temperature in Port Williams, Canada hovers around 20°C (68°F). Expect a minimum chill of 7°C (46°F), while afternoons can warm up to a pleasant 32°C (90°F). You'll want an umbrella, as rainfall averages 92 mm (3.6 in) over 10 days. Additionally, the air can feel quite moist, with an average humidity of 85%.

August Temperature in Port Williams

In August in Port Williams, the average temperature is 20°C (68°F). Maximums can reach 32°C (90°F), while minimums can be as low as 7°C (46°F). This moderate climate makes it an ideal destination for travelers looking to enjoy comfortable weather.

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

The chart illustrates August temperature patterns in Port Williams, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Williams, August typically has an average temperature of 20°C (68°F), with highs reaching up to 32°C (90°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec252530415061676760503929
Data source: Temperature data for Port Williams 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 Williams

In Port Williams in August, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.

August Precipitation Trends in Port Williams

The chart displays monthly precipitation patterns in Port Williams, 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 Williams, August typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec851069110510210392929482144112
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Port Williams

In Port Williams in August, humidity is 85%. With an average temperature of 20°C (68°F), this humidity feels like a warm, sticky blanket enveloping you, making outdoor activities quite uncomfortable and prompting travelers to seek shade and hydration more frequently.

August Average Humidity in Port Williams

This chart illustrates the average monthly humidity levels in Port Williams, 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 Williams is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%82%82%82%84%86%85%83%83%85%83%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Port Williams

In Port Williams in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Port Williams.

Maximum UV Index Levels in Port Williams for August

The chart shows the monthly maximum UV Index (UVI) for Port Williams 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 Williams typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Port Williams 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 Williams Compares to Other Months

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

This table compares monthly weather conditions in Port Williams, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)85 mm (3.3 inches)82%low
February Weather-4°C (25°F)106 mm (4.2 inches)83%moderate
March Weather-1°C (30°F)91 mm (3.6 inches)82%moderate
April Weather5°C (41°F)105 mm (4.1 inches)82%high
May Weather10°C (50°F)102 mm (4.0 inches)82%very high
June Weather16°C (61°F)103 mm (4.1 inches)84%very high
July Weather19°C (67°F)92 mm (3.6 inches)86%very high
August Weather20°C (68°F)92 mm (3.6 inches)85%very high
September Weather16°C (60°F)94 mm (3.7 inches)83%high
October Weather10°C (50°F)82 mm (3.2 inches)83%moderate
November Weather4°C (39°F)144 mm (5.7 inches)85%moderate
December Weather-2°C (29°F)112 mm (4.4 inches)83%low

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