May Weather in Truro, United States

Last updated: June 24, 2025

In Truro, United States, the average temperature in May hovers around 11°C (51°F), with a minimum of 4°C (40°F) and a maximum reaching 18°C (65°F). Expect 106 mm (4.2 in) of precipitation spread over 11 days, contributing to an average humidity of 75%. Whether you’re exploring the sights or just enjoying a cozy day indoors, be prepared for the typical weather of the season!

May Temperature in Truro

In May in Truro, the average temperature is 11°C (51°F). Maximums can reach 18°C (65°F), while minimums can drop as low as 4°C (40°F). It's a great time to travel to Truro for those who enjoy mild weather and are prepared for cooler evenings.

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

The chart illustrates May temperature patterns in Truro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Truro, May typically has an average temperature of 11°C (51°F), with highs reaching up to 18°C (65°F) and lows dropping to around 4°C (40°F).

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

May Precipitation in Truro

In Truro in May, the precipitation amount is 106 mm (4.2 in) spread over a duration of 11 days.

May Precipitation Trends in Truro

The chart displays monthly precipitation patterns in Truro, 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 Truro, May typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 11 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 Truro

In Truro in May, humidity is 75%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring you to dress in layers to stay comfortable during your travels.

May Average Humidity in Truro

This chart illustrates the average monthly humidity levels in Truro, 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 Truro is approximately 75%, 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 Truro

In Truro 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 Truro.

Maximum UV Index Levels in Truro for May

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

Data source: Truro 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 Truro Compares to Other Months

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

This table compares monthly weather conditions in Truro, 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 (37°F)	95 mm (3.7 inches)	84%	low
February Weather	2°C (37°F)	117 mm (4.6 inches)	84%	moderate
March Weather	3°C (38°F)	119 mm (4.7 inches)	82%	moderate
April Weather	7°C (44°F)	130 mm (5.1 inches)	79%	very high
May Weather	11°C (51°F)	106 mm (4.2 inches)	75%	very high
June Weather	16°C (61°F)	88 mm (3.5 inches)	78%	very high
July Weather	20°C (69°F)	84 mm (3.3 inches)	76%	very high
August Weather	21°C (70°F)	74 mm (2.9 inches)	76%	very high
September Weather	19°C (66°F)	110 mm (4.3 inches)	75%	very high
October Weather	15°C (58°F)	161 mm (6.3 inches)	75%	high
November Weather	9°C (48°F)	105 mm (4.2 inches)	80%	moderate
December Weather	5°C (41°F)	138 mm (5.4 inches)	80%	low