Seoul weather in January
Seoul in January averages -2°C (29°F), 18 mm of rain and 5.3 hours of sun a day. It is one of the driest months of the year here.
Of the twelve months in Seoul, January is the coldest and the driest.
- Average temp
- -2°C (29°F)
-5–2°C · 22–36°F
- Rainfall
- 18 mm
Not much rain
- Sunshine
- 5.3 h
hours per day
What is Seoul like in January?
Daytime
Days are cool.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Seoul in January?
A warm mid-layer
Nights drop to around -5°C (22°F).
January compared with December and February
January in Seoul is 2°C cooler than December and about as wet as it, which averages 0°C (32°F).
January in Seoul is 3°C cooler than February and 10 mm drier than it, which averages 1°C (34°F).
Daylight in Seoul in January
On 15 January the sun is up for 9 hours 50 minutes in Seoul, rising about 07:46 and setting about 17:36 local time.
January ends 40 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 4 hours 55 minutes short of June, the longest-lit month here.
Where to stay in Seoul
Dates are a starting point for January.
Travel guides for Seoul
What to read before you book.
Seoul weather by month
TemperatureRainfall
How January compares with the rest of the year
January is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -2°C / 29°F | 18 mm |
| February | 1°C / 34°F | 28 mm |
| March | 6°C / 44°F | 38 mm |
| April | 13°C / 55°F | 70 mm |
| May | 19°C / 65°F | 104 mm |
| June | 23°C / 74°F | 138 mm |
| July | 25°C / 78°F | 422 mm |
| August | 27°C / 80°F | 390 mm |
| September | 22°C / 72°F | 156 mm |
| October | 15°C / 60°F | 49 mm |
| November | 8°C / 46°F | 50 mm |
| December | 0°C / 32°F | 20 mm |
Similar weather in January
Other destinations whose January averages sit close to this one.
Check another month
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FAQs about Seoul in January
January climate averages for Seoul, 1991–2020.
Seoul averages -2°C (29°F) in January, ranging from about -5°C (22°F) at night to 2°C (36°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. January sees only about 18 mm, so rain is unlikely to affect your plans.
No. January averages -2°C (29°F) against 1°C (34°F) in February — 3°C cooler.
January is 2°C cooler than December, and about as wet.
It is outside the easiest window. The most comfortable stretch here is April to June; January sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 5.3 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what January is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 9 hours 50 minutes of daylight in mid-January, against 14 hours 45 minutes in June and 9 hours 35 minutes in December.
On 15 January, sunrise is about 07:46 and sunset about 17:36 local time. Both shift across the month — the month ends 40 minutes longer than it starts.
