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March Weather in Greater Sudbury, Canada

Last updated: June 18, 2025

In March, the average temperature in Greater Sudbury, Canada hovers around -5°C (24°F). Expect chilly conditions, with minimums dipping as low as -27°C (-16°F) and maximums reaching up to 15°C (60°F). With 51 mm (2.0 in) of precipitation spread over 8 days, it's wise to prepare for damp weather. The atmosphere is further enriched by an average humidity of 89%, giving you a true taste of the season.

March Temperature in Greater Sudbury

In March in Greater Sudbury, the average temperature is -5°C (24°F), with a maximum that can reach 15°C (60°F) and a minimum that can drop as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

March Weather in Greater Sudbury: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Greater Sudbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greater Sudbury, March typically has an average temperature of -5°C (24°F), with highs reaching up to 15°C (60°F) and lows dropping to around -27°C (-16°F).
JanFebMarAprMayJunJulAugSepOctNovDec121424375262686557452918
Data source: Temperature data for Greater Sudbury generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Greater Sudbury

In Greater Sudbury in March, the total precipitation amount is 51 mm (2.0 in), spread over a duration of 8 days.

March Precipitation Trends in Greater Sudbury

The chart displays monthly precipitation patterns in Greater Sudbury, 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 Greater Sudbury, March typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec4560518382969496911248165
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Greater Sudbury

In Greater Sudbury in March humidity is 89%. With an average temperature of -5°C (24°F), this humidity feels like an uncomfortable chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm while battling the dampness in the air.

March Average Humidity in Greater Sudbury

This chart illustrates the average monthly humidity levels in Greater Sudbury, 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 Greater Sudbury is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%95%89%87%74%70%66%71%76%85%89%93%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Greater Sudbury

In Greater Sudbury 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 Greater Sudbury.

Maximum UV Index Levels in Greater Sudbury for March

The chart shows the monthly maximum UV Index (UVI) for Greater Sudbury 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 Greater Sudbury typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799987532
Data source: Greater Sudbury 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 Greater Sudbury Compares to Other Months

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

This table compares monthly weather conditions in Greater Sudbury, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)45 mm (1.8 inches)96%low
February Weather-10°C (14°F)60 mm (2.4 inches)95%moderate
March Weather-5°C (24°F)51 mm (2.0 inches)89%moderate
April Weather3°C (38°F)83 mm (3.3 inches)87%high
May Weather11°C (53°F)82 mm (3.2 inches)73%very high
June Weather17°C (62°F)96 mm (3.8 inches)69%very high
July Weather20°C (68°F)94 mm (3.7 inches)66%very high
August Weather18°C (65°F)96 mm (3.8 inches)71%very high
September Weather14°C (57°F)90 mm (3.6 inches)76%high
October Weather7°C (45°F)124 mm (4.9 inches)85%moderate
November Weather-2°C (29°F)81 mm (3.2 inches)89%moderate
December Weather-8°C (18°F)65 mm (2.5 inches)93%low

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