May Weather in Port Rowan, Canada

Last updated: June 18, 2025

In May, the average temperature in Port Rowan, Canada hovers around 10°C (51°F). You'll experience a minimum temperature of 1°C (33°F) and a maximum of 21°C (70°F), making for a pleasant range. Be prepared for 106 mm (4.2 in) of precipitation over approximately 12 days, alongside a relatively high average humidity of 82%.

May Temperature in Port Rowan

In May, in Port Rowan, the average temperature is 10°C (51°F). The maximum can reach 21°C (70°F), and the minimum can be as low as 1°C (33°F). This climate makes Port Rowan a great destination for travelers looking to enjoy mild weather and comfortable outdoor activities.

May Weather in Port Rowan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Port Rowan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Rowan, May typically has an average temperature of 10°C (51°F), with highs reaching up to 21°C (70°F) and lows dropping to around 1°C (33°F).

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

May Precipitation in Port Rowan

In Port Rowan in May, the precipitation amount is 106 mm (4.2 in), occurring over a span of 12 days.

May Precipitation Trends in Port Rowan

The chart displays monthly precipitation patterns in Port Rowan, 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 Port Rowan, May typically receives around 106 mm (4.2 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 Port Rowan

In Port Rowan in May humidity is 82%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor adventures less appealing and prompting travelers to seek cozy indoor activities or warm drinks to counter the brisk air.

May Average Humidity in Port Rowan

This chart illustrates the average monthly humidity levels in Port Rowan, 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 Port Rowan is approximately 82%, 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 Port Rowan

In Port Rowan 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 Port Rowan.

Maximum UV Index Levels in Port Rowan for May

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

Data source: Port Rowan 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 Port Rowan Compares to Other Months

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

This table compares monthly weather conditions in Port Rowan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (30°F)	91 mm (3.6 inches)	90%	low
February Weather	-2°C (29°F)	89 mm (3.5 inches)	90%	moderate
March Weather	0°C (33°F)	92 mm (3.6 inches)	87%	moderate
April Weather	4°C (40°F)	104 mm (4.1 inches)	87%	very high
May Weather	10°C (51°F)	106 mm (4.2 inches)	82%	very high
June Weather	17°C (64°F)	80 mm (3.2 inches)	81%	very high
July Weather	22°C (72°F)	89 mm (3.5 inches)	79%	very high
August Weather	22°C (72°F)	87 mm (3.4 inches)	80%	very high
September Weather	19°C (67°F)	85 mm (3.3 inches)	81%	very high
October Weather	14°C (57°F)	132 mm (5.2 inches)	84%	high
November Weather	6°C (43°F)	115 mm (4.5 inches)	88%	moderate
December Weather	2°C (36°F)	109 mm (4.3 inches)	87%	low