Will I be hot?
Will I be hot in Osaka in January?
Verdict
No — No, comfortable.
Highs cap at 48°F — no heat-management gear needed.
Day vs. night
Day
48°F
Cool
Sweater weather with the option to add a light shell.
Night
35°F
Cold
Cold enough that a hat and gloves become mandatory.
Why
Osaka in January averages highs of 48°F, lows of 35°F, 6 rainy days.
Temperature is comfortable across the day; pack for style and weather resistance, not heat management.
Nearby months
Packing pointers
Best shoes
Breathable shoes & sandals for Osaka in January →