Will I be hot?
Will I be hot in Toronto in December?
Verdict
No — No, comfortable.
Highs cap at 32°F — no heat-management gear needed.
Day vs. night
Day
32°F
Cold
Direct sun feels cool at best; shade is jacket weather.
Night
21°F
Freezing
Deep freeze after sunset — every exposed step counts.
Why
Toronto in December averages highs of 32°F, lows of 21°F, 14 rainy days.
Temperature is comfortable across the day; pack for style and weather resistance, not heat management.