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May Weather in Windsor, Canada

Last updated: June 18, 2025

In Windsor, Canada, the average temperature in May hovers around 10°C (50°F). Be prepared for a range of conditions, as temperatures can dip to a chilly -3°C (27°F) or soar to a warm 29°C (85°F). Expect a fair share of rain, with 99 mm (3.9 in) of precipitation spread over 13 days. Don’t forget that the average humidity is a cozy 82%, making for a notably damp atmosphere.

May Temperature in Windsor

In May in Windsor, the average temperature is 10°C (50°F). Maximums can reach 29°C (85°F), while minimums can drop as low as -3°C (27°F). Travelers should be prepared for a wide range of temperatures, so packing layers is advisable.

May Weather in Windsor: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Windsor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Windsor, May typically has an average temperature of 10°C (50°F), with highs reaching up to 29°C (85°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec252530415060676860503930
Data source: Temperature data for Windsor 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 Windsor

In Windsor in May, the precipitation amount is 99 mm (3.9 in) over the course of 13 days.

May Precipitation Trends in Windsor

The chart displays monthly precipitation patterns in Windsor, 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 Windsor, May typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec8510590105999987809583140108
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Windsor

In Windsor in May, humidity is 82%. With an average temperature of 10°C (50°F), this humidity feels like a dense, heavy blanket wrapping around you, making every step feel sluggish and the air thick, which can make traveling quite uncomfortable.

May Average Humidity in Windsor

This chart illustrates the average monthly humidity levels in Windsor, 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 Windsor is approximately 82%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Windsor

In Windsor 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 Windsor.

Maximum UV Index Levels in Windsor for May

The chart shows the monthly maximum UV Index (UVI) for Windsor 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 Windsor typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Windsor 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 Windsor Compares to Other Months

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

This table compares monthly weather conditions in Windsor, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)84 mm (3.3 inches)82%low
February Weather-4°C (26°F)105 mm (4.1 inches)83%moderate
March Weather-1°C (31°F)90 mm (3.5 inches)82%moderate
April Weather5°C (42°F)105 mm (4.1 inches)82%high
May Weather10°C (50°F)99 mm (3.9 inches)82%very high
June Weather16°C (61°F)99 mm (3.9 inches)84%very high
July Weather19°C (67°F)87 mm (3.4 inches)86%very high
August Weather20°C (68°F)80 mm (3.1 inches)85%very high
September Weather16°C (61°F)95 mm (3.7 inches)83%high
October Weather10°C (50°F)83 mm (3.3 inches)83%moderate
November Weather4°C (39°F)140 mm (5.5 inches)85%moderate
December Weather-1°C (30°F)108 mm (4.3 inches)83%low

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