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Ontario Canada
Temperatures in January
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Ontario temperatures in January

Ontario is a region in Canada. In January the average maximum daytime temperatures are very low and range from -12°C in Red Lake to 1°C in Saint Catharines. Nighttime temperatures generally drop to -6°C in Saint Catharines and -21°C in Red Lake. January falls during the winter season. On average, it is one of the coldest months of the year.

What is the temperature of the different cities in Ontario in January?

To get a sense of January's typical temperatures in the key spots of Ontario, explore the map below. Click on a point for an in-depth look.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in January in Ontario?
    • Based on our systematic data collection, Saint Catharines has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 1°C, while at night is goes down to an approximate temperature of -6°C."

  • What is the coldest city in January in Ontario?
    • When looking through our records, we find that Red Lake stands out as the coolest city in Ontario for the month of January. Daytime highs average -12°C and it cools down to about -21°C at night.

  • How much sun does Ontario get in January?
    • Most cities witness limited sunny days, expect roughly 85 hours of sunlight in Toronto. This subdued sunlight is perfect for those who prefer cooler, cloudier weather rather than intense sunny days.

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