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January Weather in Greater Sudbury, Canada

Last updated: June 18, 2025

In Greater Sudbury, Canada, the average temperature in January hovers around -11°C (13°F), with a minimum dipping as low as -37°C (-34°F) and a maximum reaching 7°C (44°F). Expect precipitation to total about 45 mm (1.8 in) over 8 days, complemented by an average humidity of 96%, creating a chilling yet picturesque winter atmosphere.

January Temperature in Greater Sudbury

In January in Greater Sudbury, the average temperature is -11°C (13°F). The maximum can reach 7°C (44°F), and the minimum can be as low as -37°C (-34°F). Travelers should be prepared for extreme cold and fluctuating temperatures during this time.

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

The chart illustrates January 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, January typically has an average temperature of -11°C (13°F), with highs reaching up to 7°C (44°F) and lows dropping to around -37°C (-34°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.

January Precipitation in Greater Sudbury

In Greater Sudbury in January, the precipitation amount is 45 mm (1.8 in) over the course of 8 days.

January Precipitation Trends in Greater Sudbury

The chart displays monthly precipitation patterns in Greater Sudbury, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Greater Sudbury, January typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec4560518382969496911248165
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Greater Sudbury

In Greater Sudbury in January humidity is 96%. With an average temperature of -11°C (13°F), this humidity feels like an icy mist that envelops you, making even the brisk air seem heavy and biting, turning each breath into a frosty challenge for traveling.

January Average Humidity in Greater Sudbury

This chart illustrates the average monthly humidity levels in Greater Sudbury, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Greater Sudbury is approximately 96%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Greater Sudbury

In Greater Sudbury in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Greater Sudbury, you can visit Hourly UV Index in Greater Sudbury.

Maximum UV Index Levels in Greater Sudbury for January

The chart shows the monthly maximum UV Index (UVI) for Greater Sudbury in January, 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 January, the maximum UV index in Greater Sudbury typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799987532
Data source: Greater Sudbury January 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 January 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 January’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 January’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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