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August Weather in Saint-Boniface, Canada

Last updated: June 18, 2025

In August, the average temperature in Saint-Boniface, Canada hovers around 18°C (65°F). Expect a range of 6°C (43°F) as the minimum and up to 31°C (89°F) at the peak. Throughout the month, 117 mm (4.6 in) of precipitation is expected over approximately 14 days, contributing to an average humidity of 73%.

August Temperature in Saint-Boniface

In August in Saint-Boniface, the average temperature is 18°C (65°F). Maximums can reach 31°C (89°F), while minimums can be as low as 6°C (43°F). This makes Saint-Boniface a comfortable destination for travelers looking to enjoy mild weather with warm days and cooler evenings.

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

The chart illustrates August temperature patterns in Saint-Boniface, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Boniface, August typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (89°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec121424385362686557453118
Data source: Temperature data for Saint-Boniface 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-Boniface

In Saint-Boniface in August, the precipitation amount is 117 mm (4.6 in) spread over 14 days.

August Precipitation Trends in Saint-Boniface

The chart displays monthly precipitation patterns in Saint-Boniface, 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-Boniface, August typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec6674811071201041131181041158885
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Saint-Boniface

In Saint-Boniface in August, humidity is 73%. With an average temperature of 18°C (65°F), this humidity feels like a warm, slightly muggy embrace that can make exploring the outdoors a bit sticky, yet still pleasant for leisurely strolls and sightseeing.

August Average Humidity in Saint-Boniface

This chart illustrates the average monthly humidity levels in Saint-Boniface, 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-Boniface is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%95%91%85%76%69%75%73%76%87%91%94%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint-Boniface

In Saint-Boniface 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-Boniface.

Maximum UV Index Levels in Saint-Boniface for August

The chart shows the monthly maximum UV Index (UVI) for Saint-Boniface 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-Boniface typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Saint-Boniface 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-Boniface Compares to Other Months

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

This table compares monthly weather conditions in Saint-Boniface, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)66 mm (2.6 inches)96%low
February Weather-10°C (15°F)74 mm (2.9 inches)95%moderate
March Weather-4°C (24°F)81 mm (3.2 inches)91%moderate
April Weather3°C (38°F)107 mm (4.2 inches)85%high
May Weather11°C (53°F)120 mm (4.7 inches)76%very high
June Weather16°C (62°F)104 mm (4.1 inches)69%very high
July Weather20°C (68°F)113 mm (4.4 inches)75%very high
August Weather18°C (65°F)117 mm (4.6 inches)73%very high
September Weather14°C (57°F)104 mm (4.1 inches)76%high
October Weather7°C (46°F)115 mm (4.5 inches)87%moderate
November Weather-1°C (31°F)87 mm (3.4 inches)91%moderate
December Weather-8°C (19°F)85 mm (3.3 inches)94%low

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