May Weather in Brantford, Canada

Last updated: June 18, 2025

In May, the average temperature in Brantford, Canada hovers around 14°C (57°F). Temperatures can vary significantly, with a minimum of -4°C (26°F) and a maximum of 32°C (91°F). Expect a total precipitation of 97 mm (3.8 in) over approximately 12 days, and prepare for a notable average humidity of 82%.

May Temperature in Brantford

In May in Brantford, the average temperature is 14°C (57°F). The maximum can reach 32°C (91°F) and the minimum can be as low as -4°C (26°F). It's advisable to pack for a wide range of temperatures to ensure a comfortable trip.

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

The chart illustrates May temperature patterns in Brantford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brantford, May typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (91°F) and lows dropping to around -4°C (26°F).

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

May Precipitation in Brantford

In Brantford in May, the precipitation amount is 97 mm (3.8 in) spread over 12 days.

May Precipitation Trends in Brantford

The chart displays monthly precipitation patterns in Brantford, 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 Brantford, May typically receives around 97 mm (3.8 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 Brantford

In Brantford in May, humidity is 82%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and travel more challenging due to the heavy, damp air.

May Average Humidity in Brantford

This chart illustrates the average monthly humidity levels in Brantford, 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 Brantford 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 Brantford

In Brantford 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 Brantford.

Maximum UV Index Levels in Brantford for May

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

Data source: Brantford 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 Brantford Compares to Other Months

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

This table compares monthly weather conditions in Brantford, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	70 mm (2.7 inches)	90%	low
February Weather	-4°C (26°F)	74 mm (2.9 inches)	90%	moderate
March Weather	1°C (33°F)	65 mm (2.6 inches)	87%	moderate
April Weather	6°C (44°F)	98 mm (3.9 inches)	87%	very high
May Weather	14°C (57°F)	97 mm (3.8 inches)	82%	very high
June Weather	19°C (67°F)	103 mm (4.1 inches)	81%	very high
July Weather	22°C (72°F)	82 mm (3.2 inches)	79%	very high
August Weather	21°C (70°F)	90 mm (3.5 inches)	80%	very high
September Weather	17°C (63°F)	71 mm (2.8 inches)	81%	high
October Weather	11°C (52°F)	100 mm (3.9 inches)	84%	moderate
November Weather	3°C (38°F)	75 mm (3.0 inches)	88%	moderate
December Weather	-1°C (30°F)	70 mm (2.8 inches)	87%	low