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May Weather in Saint-Boniface, Canada

Last updated: June 18, 2025

In May, the average temperature in Saint-Boniface, Canada is 11°C (53°F), with variations ranging from a chilly -5°C (23°F) to a warm 34°C (93°F). Expect a total precipitation of 120 mm (4.7 in) over 13 days, and prepare for an average humidity level of 76%.

May Temperature in Saint-Boniface

In May, in Saint-Boniface, the average temperature is 11°C (53°F). Maximums can reach 34°C (93°F), while minimums can drop as low as -5°C (23°F). This diverse range of temperatures makes Saint-Boniface a destination where travelers should prepare for both warm days and chilly nights.

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

The chart illustrates May 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, May typically has an average temperature of 11°C (53°F), with highs reaching up to 34°C (93°F) and lows dropping to around -5°C (23°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.

May Precipitation in Saint-Boniface

In Saint-Boniface in May, the precipitation amount is 120 mm (4.7 in) spread over 13 days.

May Precipitation Trends in Saint-Boniface

The chart displays monthly precipitation patterns in Saint-Boniface, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Saint-Boniface, May typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec6674811071201041131181041158885
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Saint-Boniface

In Saint-Boniface in May, humidity is 76%. With an average temperature of 11°C (53°F), this humidity feels like a brisk chill that can make outdoor excursions slightly uncomfortable, as the dampness in the air clings to your skin, making layered clothing essential for any travelers venturing out.

May Average Humidity in Saint-Boniface

This chart illustrates the average monthly humidity levels in Saint-Boniface, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Saint-Boniface is approximately 76%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Saint-Boniface

In Saint-Boniface in May, 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 Saint-Boniface.

Maximum UV Index Levels in Saint-Boniface for May

The chart shows the monthly maximum UV Index (UVI) for Saint-Boniface in May, 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 May, the maximum UV index in Saint-Boniface typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Saint-Boniface May 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 May 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 May’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 May’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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