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January Weather in Mississauga, Canada

Last updated: June 18, 2025

In Mississauga, Canada, the average temperature in January hovers around -3°C (26°F). Be prepared for some brisk conditions, as temperatures can dip as low as -22°C (-8°F), while occasionally peaking at a milder 12°C (53°F). With an average precipitation of 73 mm (2.9 in) spread over 8 days, and a striking average humidity of 91%, it's wise to bundle up and perhaps carry an umbrella!

January Temperature in Mississauga

In January in Mississauga, the average temperature is -3°C (26°F). The maximum can reach 12°C (53°F), while the minimum can drop as low as -22°C (-8°F). Be prepared for a wide range of temperatures when traveling to Mississauga this month.

January Weather in Mississauga: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mississauga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mississauga, January typically has an average temperature of -3°C (26°F), with highs reaching up to 12°C (53°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec262733425465727164533932
Data source: Temperature data for Mississauga 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 Mississauga

In Mississauga in January, the precipitation amount is 73 mm (2.9 in) over a span of 8 days.

January Precipitation Trends in Mississauga

The chart displays monthly precipitation patterns in Mississauga, 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 Mississauga, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec73806411098887577631087978
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Mississauga

In Mississauga in January humidity is 91%. With an average temperature of -3°C (26°F), this humidity feels like a biting chill that penetrates through your clothing, making travel uncomfortable and the air crisp with an eerie dampness that can quickly sap your energy.

January Average Humidity in Mississauga

This chart illustrates the average monthly humidity levels in Mississauga, 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 Mississauga is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Mississauga

In Mississauga 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 Mississauga, you can visit Hourly UV Index in Mississauga.

Maximum UV Index Levels in Mississauga for January

The chart shows the monthly maximum UV Index (UVI) for Mississauga 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 Mississauga typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Mississauga 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 Mississauga Compares to Other Months

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

This table compares monthly weather conditions in Mississauga, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)73 mm (2.9 inches)91%low
February Weather-3°C (27°F)80 mm (3.2 inches)91%moderate
March Weather1°C (34°F)64 mm (2.5 inches)88%moderate
April Weather6°C (43°F)110 mm (4.3 inches)88%very high
May Weather12°C (54°F)98 mm (3.9 inches)82%very high
June Weather18°C (65°F)88 mm (3.5 inches)79%very high
July Weather22°C (72°F)75 mm (2.9 inches)77%very high
August Weather22°C (71°F)77 mm (3.0 inches)72%very high
September Weather18°C (64°F)63 mm (2.5 inches)76%high
October Weather12°C (53°F)108 mm (4.3 inches)83%moderate
November Weather4°C (39°F)79 mm (3.1 inches)88%moderate
December Weather0°C (32°F)78 mm (3.1 inches)87%low

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