Seoul Weather in January
South Korea · 30-year monthly averages
🤔 Fair time to visit
January in Seoul is cold, with average daytime highs around 2°C (36°F) and nighttime lows near -5°C (22°F). Expect roughly 17mm of precipitation spread over about 3 rainy days, and rain is rare.
Avg high
2°C
36°F
Avg low
-5°C
22°F
Rainfall
17mm
very dry
Rainy days
3
days with ≥1mm
☀️ About 170 hours of sunshine over the month (~6h/day).
🎒 What to pack
- warm coat
- sweaters and layers
- scarf
January vs the rest of the year
FAQ
- How hot is Seoul in January?
- January in Seoul is cold, with average daytime highs around 2°C (36°F) and nighttime lows near -5°C (22°F). Expect roughly 17mm of precipitation spread over about 3 rainy days, and rain is rare.
- Does it rain a lot in Seoul in January?
- Seoul sees around 17mm of precipitation in January on average — very dry by global standards.
- Is January a good time to visit Seoul?
- January is a workable month to visit Seoul, but expect some weather trade-offs.