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May Weather in Gravenhurst, Canada

Last updated: June 18, 2025

In May, the average temperature in Gravenhurst, Canada hovers around 11°C (53°F). You can expect a range from a chilly -4°C (26°F) to a warm 31°C (88°F). The area sees about 103 mm (4.0 in) of precipitation over 12 days, contributing to an average humidity of 74%. Stay prepared for anything this month may bring!

May Temperature in Gravenhurst

In May in Gravenhurst, the average temperature is 11°C (53°F). The maximum can reach 31°C (88°F), while the minimum can drop as low as -4°C (26°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and cold weather.

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

The chart illustrates May temperature patterns in Gravenhurst, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gravenhurst, May typically has an average temperature of 11°C (53°F), with highs reaching up to 31°C (88°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec172027395362696759483424
Data source: Temperature data for Gravenhurst 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 Gravenhurst

In Gravenhurst in May, the precipitation amount is 103 mm (4.0 in) recorded over a span of 12 days.

May Precipitation Trends in Gravenhurst

The chart displays monthly precipitation patterns in Gravenhurst, 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 Gravenhurst, May typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec71837011310311910213811410710592
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Gravenhurst

In Gravenhurst in May humidity is 74%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less inviting and suggesting that travelers should dress in layers to stay warm and comfortable.

May Average Humidity in Gravenhurst

This chart illustrates the average monthly humidity levels in Gravenhurst, 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 Gravenhurst is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%94%87%82%74%68%67%67%74%83%89%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Gravenhurst

In Gravenhurst 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 Gravenhurst.

Maximum UV Index Levels in Gravenhurst for May

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

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

This table compares monthly weather conditions in Gravenhurst, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)71 mm (2.8 inches)93%low
February Weather-7°C (20°F)83 mm (3.3 inches)94%moderate
March Weather-3°C (27°F)70 mm (2.7 inches)87%moderate
April Weather4°C (40°F)113 mm (4.4 inches)82%very high
May Weather11°C (53°F)103 mm (4.0 inches)74%very high
June Weather17°C (63°F)119 mm (4.7 inches)68%very high
July Weather20°C (69°F)102 mm (4.0 inches)67%very high
August Weather19°C (67°F)138 mm (5.4 inches)67%very high
September Weather15°C (59°F)114 mm (4.5 inches)74%high
October Weather9°C (49°F)107 mm (4.2 inches)83%moderate
November Weather1°C (34°F)105 mm (4.1 inches)89%moderate
December Weather-4°C (24°F)92 mm (3.6 inches)91%low

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