Thunder Bay Weather in January

January in Thunder Bay brings very low temperatures around -8°C (18°F) during the day, dropping to -17°C (1°F) at night, with some snowfall expected.

Rainfall in Thunder Bay in January

Analyzing past climate data, one can expect approximately 11 days of snow, averaging 36 mm (1.4 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Thunder Bay in January

If you're visiting Thunder Bay in January, expect highs of -8°C (18°F) and overnight lows around -17°C (1°F). January marks the winter season. Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. At -17°C (1°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. During the coldest month of the year, be prepared to bundle up with heavy winter gear.

January in Thunder Bay can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.