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August Weather in Renfrew, Canada

Last updated: June 18, 2025

The average temperature in Renfrew, Canada during August is a mild 19°C (67°F). However, temperatures can vary significantly, with minimums dipping to 6°C (44°F) and maximums soaring to 33°C (91°F). Be prepared for some moisture as well, with an average precipitation of 110 mm (4.3 in) spread over 13 days. Expect a moderate average humidity of 67%, making it a season of rich contrasts.

August Temperature in Renfrew

In August in Renfrew, the average temperature is 19°C (67°F). The maximum can reach 33°C (91°F), and the minimum can be as low as 6°C (44°F). This makes for a pleasant climate, perfect for exploring the outdoors and enjoying various activities.

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

The chart illustrates August temperature patterns in Renfrew, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Renfrew, August typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (91°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec161827415464706759473221
Data source: Temperature data for Renfrew 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 Renfrew

In Renfrew in August, the total precipitation amount is 110 mm (4.3 in) over the course of 13 days.

August Precipitation Trends in Renfrew

The chart displays monthly precipitation patterns in Renfrew, 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 Renfrew, August typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec68707410911192100110661108273
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Renfrew

In Renfrew in August, humidity is 67%. With an average temperature of 19°C (67°F), this humidity feels like walking through a warm, soft blanket, making sightseeing and outdoor activities a bit more challenging but still enjoyable for those prepared with light clothing and plenty of hydration.

August Average Humidity in Renfrew

This chart illustrates the average monthly humidity levels in Renfrew, 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 Renfrew is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Renfrew

In Renfrew 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 Renfrew.

Maximum UV Index Levels in Renfrew for August

The chart shows the monthly maximum UV Index (UVI) for Renfrew 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 Renfrew typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Renfrew 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 Renfrew Compares to Other Months

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

This table compares monthly weather conditions in Renfrew, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)68 mm (2.7 inches)93%low
February Weather-8°C (18°F)70 mm (2.8 inches)93%moderate
March Weather-3°C (27°F)74 mm (2.9 inches)86%moderate
April Weather5°C (41°F)109 mm (4.3 inches)82%very high
May Weather12°C (55°F)111 mm (4.4 inches)75%very high
June Weather18°C (64°F)92 mm (3.6 inches)68%very high
July Weather21°C (70°F)99 mm (3.9 inches)69%very high
August Weather19°C (67°F)110 mm (4.3 inches)67%very high
September Weather15°C (59°F)66 mm (2.6 inches)72%high
October Weather8°C (48°F)110 mm (4.3 inches)83%moderate
November Weather0°C (32°F)82 mm (3.2 inches)88%moderate
December Weather-6°C (22°F)73 mm (2.9 inches)89%low

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