May Weather in Devon, Canada

Last updated: June 18, 2025

In May, the average temperature in Devon, Canada hovers around 11°C (52°F). Expect a chill with minimums dipping to -5°C (23°F), while sunny spells can see highs of 29°C (84°F). Prepare for 63 mm (2.5 in) of precipitation spread over 9 days, and don't forget your umbrella as the average humidity lingers at a cozy 77%.

May Temperature in Devon

In May in Devon, the average temperature is 11°C (52°F). Maximum temperatures can reach 29°C (84°F), while minimums can dip as low as -5°C (23°F). It's a diverse climate, so be prepared for both warm days and chilly nights while traveling.

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

The chart illustrates May temperature patterns in Devon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Devon, May typically has an average temperature of 11°C (52°F), with highs reaching up to 29°C (84°F) and lows dropping to around -5°C (23°F).

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

May Precipitation in Devon

In Devon in May, the total precipitation amount is 63 mm (2.5 in) spread over a duration of 9 days.

May Precipitation Trends in Devon

The chart displays monthly precipitation patterns in Devon, 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 Devon, May typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 9 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 Devon

In Devon in May humidity is 77%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable if not properly dressed, as the moisture in the air amplifies the cold, leaving travelers feeling cooler than expected.

May Average Humidity in Devon

This chart illustrates the average monthly humidity levels in Devon, 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 Devon is approximately 77%, 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 Devon

In Devon in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Devon.

Maximum UV Index Levels in Devon for May

The chart shows the monthly maximum UV Index (UVI) for Devon 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 Devon typically reaches 7, which falls under the high exposure category.

Data source: Devon 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 Devon Compares to Other Months

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

This table compares monthly weather conditions in Devon, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (15°F)	17 mm (0.7 inches)	90%	low
February Weather	-12°C (11°F)	21 mm (0.8 inches)	92%	moderate
March Weather	-4°C (25°F)	28 mm (1.1 inches)	87%	moderate
April Weather	2°C (36°F)	31 mm (1.2 inches)	81%	moderate
May Weather	11°C (52°F)	63 mm (2.5 inches)	77%	high
June Weather	15°C (59°F)	96 mm (3.8 inches)	77%	high
July Weather	17°C (63°F)	106 mm (4.2 inches)	81%	very high
August Weather	16°C (60°F)	71 mm (2.8 inches)	78%	high
September Weather	10°C (51°F)	56 mm (2.2 inches)	73%	high
October Weather	3°C (38°F)	26 mm (1.0 inches)	78%	moderate
November Weather	-4°C (24°F)	38 mm (1.5 inches)	82%	low
December Weather	-8°C (17°F)	21 mm (0.8 inches)	91%	low