South Korea
Seoul in January: weather & travel advice
This month's data profile
Balanced monthly profile
Seoul in January is climatically mixed. The average daily high is around 1 °C. With about 4 rainy days it is dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
49/100 · #11
Warmth
#12
Dryness
#2
Sun
#10
Published best categories: none
Seoul · JanuaryPhoto: Basile Morin · CC BY-SA 4.0Climate facts
- Average high
- 1 °C
- Average low
- -7 °C
- Rainy days (est.)
- 4 rainy days (est.)
- Sun (est.)
- 3 h/day
- Humidity
- 77 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| December | 3 | -4 | 5 | 26 | 2.7 | 77 | 3.3 | 48 |
| January (selected) | 1 | -7 | 4 | 21 | 3.1 | 77 | 3.2 | 49 |
| February | 3 | -5 | 4 | 29 | 4.1 | 74 | 3.3 | 52 |
How do the previous and next months compare?
Baseline: January (49/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| December | -1 | +2.3 °C | +2.6 °C | +0.9 | +5.4 mm | -0.4 h | +0.3 % | ±0 m/s |
| February | +3 | +2.7 °C | +2 °C | ±0 | +8.3 mm | +1 h | -2.5 % | ±0 m/s |
All twelve months in context
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Where to stay in Seoul
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Useful next decisions
Frequently asked questions
How warm is Seoul in January?
The average daily high is around 1 °C, with an average daily low of about -7 °C.
Does it rain a lot in Seoul in January?
The curated estimate is about 4 rainy days per month, not a directly measured long-term average. Total precipitation averages around 21 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Seoul?
By the climate score, May, June, September and October are the strongest months for Seoul. January is not among them.