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August Weather in Saint-Leonard, Canada

Last updated: June 18, 2025

In August, the average temperature in Saint-Leonard, Canada hovers around 18°C (64°F), with temperatures ranging from a chilly 3°C (38°F) to a warm 31°C (89°F). During this month, expect around 84 mm (3.3 in) of precipitation over 10 days, resulting in a relatively high average humidity of 83%.

August Temperature in Saint-Leonard

In August in Saint-Leonard, the average temperature is 18°C (64°F). The maximum can reach 31°C (89°F) and the minimum can be as low as 3°C (38°F). This moderate climate makes Saint-Leonard a great destination for travelers seeking pleasant weather.

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

The chart illustrates August temperature patterns in Saint-Leonard, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Leonard, August typically has an average temperature of 18°C (64°F), with highs reaching up to 31°C (89°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec131524375060656455443018
Data source: Temperature data for Saint-Leonard 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-Leonard

In Saint-Leonard in August, the precipitation amount is 84 mm (3.3 in) over a span of 10 days.

August Precipitation Trends in Saint-Leonard

The chart displays monthly precipitation patterns in Saint-Leonard, 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-Leonard, August typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec927576121100908984106126125110
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Saint-Leonard

In Saint-Leonard in August humidity is 83%. With an average temperature of 18°C (64°F), this humidity feels like a warm blanket enveloping you, making outdoor exploring somewhat sticky and requiring frequent hydration breaks.

August Average Humidity in Saint-Leonard

This chart illustrates the average monthly humidity levels in Saint-Leonard, 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-Leonard is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%87%82%77%82%83%85%87%88%90%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint-Leonard

In Saint-Leonard 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 Saint-Leonard.

Maximum UV Index Levels in Saint-Leonard for August

The chart shows the monthly maximum UV Index (UVI) for Saint-Leonard 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-Leonard typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810887432
Data source: Saint-Leonard 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-Leonard Compares to Other Months

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

This table compares monthly weather conditions in Saint-Leonard, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)92 mm (3.6 inches)93%low
February Weather-9°C (15°F)75 mm (2.9 inches)92%moderate
March Weather-5°C (24°F)76 mm (3.0 inches)90%moderate
April Weather3°C (37°F)121 mm (4.8 inches)87%high
May Weather10°C (51°F)100 mm (3.9 inches)82%very high
June Weather15°C (60°F)90 mm (3.5 inches)77%very high
July Weather19°C (66°F)89 mm (3.5 inches)81%very high
August Weather18°C (64°F)84 mm (3.3 inches)83%very high
September Weather13°C (56°F)106 mm (4.2 inches)85%high
October Weather7°C (44°F)126 mm (4.9 inches)87%moderate
November Weather-1°C (31°F)125 mm (4.9 inches)87%moderate
December Weather-8°C (18°F)110 mm (4.3 inches)90%low

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