May Weather in Orillia, Canada

Last updated: June 18, 2025

In Orillia, Canada during May, the average temperature hovers around 13°C (55°F). Expect a range with a minimum of -2°C (29°F) and a maximum soaring to 33°C (92°F). Rainfall totals about 94 mm (3.7 in) spread over 12 days, contributing to an average humidity of 74%. Whether you're looking to embrace the chill or enjoy the warmth, this month offers a varied climate experience!

May Temperature in Orillia

In May in Orillia, the average temperature is 13°C (55°F), with maximums reaching 33°C (92°F) and minimums dropping as low as -2°C (29°F). It's advisable to pack layers to prepare for the diverse weather conditions during your travels.

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

The chart illustrates May temperature patterns in Orillia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Orillia, May typically has an average temperature of 13°C (55°F), with highs reaching up to 33°C (92°F) and lows dropping to around -2°C (29°F).

Data source: Temperature data for Orillia generated using information from the Copernicus Climate Change Service.

May Precipitation in Orillia

In Orillia in May, the precipitation amount is 94 mm (3.7 in) spread over 12 days.

May Precipitation Trends in Orillia

The chart displays monthly precipitation patterns in Orillia, 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 Orillia, May typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Orillia

In Orillia in May, humidity is 74%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and demanding frequent breaks in shaded areas.

May Average Humidity in Orillia

This chart illustrates the average monthly humidity levels in Orillia, 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 Orillia is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Orillia

In Orillia 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 Orillia.

Maximum UV Index Levels in Orillia for May

The chart shows the monthly maximum UV Index (UVI) for Orillia 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 Orillia typically reaches 9, which falls under the very high exposure category.

Data source: Orillia 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 Orillia Compares to Other Months

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

This table compares monthly weather conditions in Orillia, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	64 mm (2.5 inches)	93%	low
February Weather	-6°C (22°F)	70 mm (2.7 inches)	94%	moderate
March Weather	-2°C (29°F)	66 mm (2.6 inches)	87%	moderate
April Weather	5°C (41°F)	110 mm (4.3 inches)	82%	very high
May Weather	13°C (55°F)	94 mm (3.7 inches)	74%	very high
June Weather	18°C (65°F)	103 mm (4.1 inches)	68%	very high
July Weather	21°C (71°F)	109 mm (4.3 inches)	67%	very high
August Weather	20°C (69°F)	122 mm (4.8 inches)	67%	very high
September Weather	16°C (61°F)	86 mm (3.4 inches)	74%	high
October Weather	10°C (50°F)	113 mm (4.4 inches)	83%	moderate
November Weather	2°C (36°F)	88 mm (3.5 inches)	89%	moderate
December Weather	-3°C (26°F)	81 mm (3.2 inches)	91%	low