May Weather in Peterborough, Canada

Last updated: June 18, 2025

In May, the average temperature in Peterborough, Canada hovers around 13°C (56°F). Visitors can expect a temperature range from a chilly -3°C (26°F) to a warm 31°C (88°F). With 105 mm (4.1 in) of precipitation over 12 days, it's wise to carry an umbrella. Additionally, the average humidity sits at a comfortable 74%, creating a pleasant atmosphere for exploring.

May Temperature in Peterborough

In May in Peterborough, the average temperature is 13°C (56°F). Maximums can reach 31°C (88°F), and minimums can be as low as -3°C (26°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in Peterborough, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Peterborough, May typically has an average temperature of 13°C (56°F), with highs reaching up to 31°C (88°F) and lows dropping to around -3°C (26°F).

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

May Precipitation in Peterborough

In Peterborough in May, the precipitation amount is 105 mm (4.1 in) over the course of 12 days.

May Precipitation Trends in Peterborough

The chart displays monthly precipitation patterns in Peterborough, 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 Peterborough, May typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Peterborough

In Peterborough in May humidity is 74%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, especially for travelers unaccustomed to such conditions.

May Average Humidity in Peterborough

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

In Peterborough 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 Peterborough.

Maximum UV Index Levels in Peterborough for May

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

Data source: Peterborough 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 Peterborough Compares to Other Months

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

This table compares monthly weather conditions in Peterborough, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	67 mm (2.7 inches)	93%	low
February Weather	-5°C (23°F)	72 mm (2.8 inches)	94%	moderate
March Weather	-1°C (31°F)	65 mm (2.6 inches)	87%	moderate
April Weather	6°C (42°F)	116 mm (4.6 inches)	82%	very high
May Weather	13°C (56°F)	105 mm (4.1 inches)	74%	very high
June Weather	19°C (66°F)	99 mm (3.9 inches)	68%	very high
July Weather	22°C (72°F)	93 mm (3.7 inches)	67%	very high
August Weather	21°C (69°F)	118 mm (4.6 inches)	67%	very high
September Weather	17°C (62°F)	82 mm (3.2 inches)	74%	high
October Weather	10°C (50°F)	110 mm (4.4 inches)	83%	moderate
November Weather	2°C (36°F)	85 mm (3.3 inches)	89%	moderate
December Weather	-3°C (27°F)	74 mm (2.9 inches)	91%	low