Will I be hot?
Will I be hot in Tbilisi in January?
Verdict
No — No, comfortable.
Highs cap at 46°F — no heat-management gear needed.
Day vs. night
Day
46°F
Cool
Sweater weather with the option to add a light shell.
Night
32°F
Cold
Cold enough that a hat and gloves become mandatory.
Why
Tbilisi in January averages highs of 46°F, lows of 32°F, 9 rainy days.
Temperature is comfortable across the day; pack for style and weather resistance, not heat management.