March Weather in Waterloo, Canada

Last updated: June 18, 2025

In March, the average temperature in Waterloo, Canada hovers around 0°C (32°F). Expect chilly nights with minimums dropping to -22°C (-7°F), while daytime highs can reach up to 19°C (66°F). This month also brings a decent amount of precipitation, averaging 67 mm (2.6 in) over 10 days, and with an average humidity of 87%, be prepared for a damp and cool climate.

March Temperature in Waterloo

In March in Waterloo, the average temperature is 0°C (32°F), with maximums reaching 19°C (66°F) and minimums dropping as low as -22°C (-7°F). Travelers should be prepared for chilly conditions, but can also enjoy some milder days suitable for outdoor exploration.

March Weather in Waterloo: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Waterloo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Waterloo, March typically has an average temperature of 0°C (32°F), with highs reaching up to 19°C (66°F) and lows dropping to around -22°C (-7°F).

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

March Precipitation in Waterloo

In Waterloo in March, the total precipitation amount is 67 mm (2.6 in) over a period of 10 days.

March Precipitation Trends in Waterloo

The chart displays monthly precipitation patterns in Waterloo, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Waterloo, March typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Waterloo

In Waterloo in March, humidity is 87%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that clings to your skin, making travel uncomfortable and cold, as each breath brings a heavy moisture that seeps into your clothes.

March Average Humidity in Waterloo

This chart illustrates the average monthly humidity levels in Waterloo, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Waterloo is approximately 87%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Waterloo

In Waterloo in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Waterloo.

Maximum UV Index Levels in Waterloo for March

The chart shows the monthly maximum UV Index (UVI) for Waterloo in March, 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 March, the maximum UV index in Waterloo typically reaches 5, which falls under the moderate exposure category.

Data source: Waterloo March 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 March Weather in Waterloo Compares to Other Months

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

This table compares monthly weather conditions in Waterloo, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	73 mm (2.9 inches)	90%	low
February Weather	-5°C (24°F)	77 mm (3.0 inches)	90%	moderate
March Weather	0°C (32°F)	67 mm (2.6 inches)	87%	moderate
April Weather	5°C (42°F)	100 mm (3.9 inches)	87%	very high
May Weather	13°C (56°F)	98 mm (3.8 inches)	82%	very high
June Weather	18°C (66°F)	104 mm (4.1 inches)	81%	very high
July Weather	21°C (71°F)	75 mm (3.0 inches)	79%	very high
August Weather	20°C (69°F)	97 mm (3.8 inches)	80%	very high
September Weather	16°C (62°F)	75 mm (3.0 inches)	81%	high
October Weather	10°C (50°F)	104 mm (4.1 inches)	84%	moderate
November Weather	2°C (36°F)	83 mm (3.3 inches)	88%	moderate
December Weather	-2°C (29°F)	74 mm (2.9 inches)	87%	low