Exercise normal precautions
South Korea in January
Around 4 °C with 31 mm of rain and 6.1 hours of sun a day.
January is one of the strongest months to visit South Korea. Around 4 °C with 31 mm of rain and 6.1 hours of sun a day. Use the regional grid below to find where this month works best — national averages hide the swings between coast, highlands, and inland.
South Korea · typical month
- Day / night-5 – 4 °CYear range -5 – 30 °C
- Rainfall31 mmYear range 31 – 251 mm
- Sunshine6.1 hr / dayYear range 4.5 – 7.2 hr / day
Things to do in South Korea in January
Nothing in South Korea shuts for the season; January runs the full list.
- OpenTravelling in the jangma
nothing closes; the monsoon simply decides what a day outdoors looks like
Source: geographyworlds.com
Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.
South Korea, taken apart
- Busan8°C now · 8–29 °C yr
- Daegu5°C now · 5–31 °C yr
- Daejeon4°C now · 4–31 °C yr
- Gangwon2°C now · 2–28 °C yr
- Gwangju5°C now · 5–31 °C yr
- Gyeonggi2°C now · 2–30 °C yr
- Incheon2°C now · 2–29 °C yr
- Jeju8°C now · 8–29 °C yr
- North Chungcheong3°C now · 3–30 °C yr
- North Gyeongsang4°C now · 4–30 °C yr
- North Jeolla4°C now · 4–30 °C yr
- Sejong4°C now · 4–31 °C yr
- Seoul3°C now · 3–30 °C yr
- South Chungcheong4°C now · 4–30 °C yr
- South Gyeongsang6°C now · 6–30 °C yr
- South Jeolla6°C now · 6–30 °C yr
- Ulsan7°C now · 7–30 °C yr
What the governments say about South Korea
See breakdown by countryHide breakdown
Exercise normal precautions
Exercise normal precautions
Exercise normal precautions
Exercise normal precautions
Exercise normal precautions
Parts of South Korea carry a higher advisory — up to level 4, "Do not travel". The governments concerned name a region rather than a boundary, so the carve-out is not drawn on the map and is not reflected in the combined level above. Follow the source links for where it applies.
A decade of weather, in one page
View data table
| Month | Average daytime high (°C) | Average overnight low (°C) | Typical low | Typical high |
|---|---|---|---|---|
| January | 3.9 | -4.6 | -11.6 | 9.5 |
| February | 6.1 | -2.7 | -8.7 | 13.1 |
| March | 12.5 | 2.7 | -2.5 | 19.9 |
| April | 18.0 | 8.0 | 2.4 | 24.0 |
| May | 22.5 | 12.9 | 7.7 | 27.2 |
| June | 26.2 | 18.2 | 14.1 | 30.1 |
| July | 28.7 | 22.6 | 18.9 | 32.8 |
| August | 29.6 | 23.0 | 18.6 | 33.1 |
| September | 25.4 | 18.1 | 12.9 | 30.0 |
| October | 19.5 | 10.8 | 4.4 | 24.9 |
| November | 13.1 | 3.7 | -2.2 | 19.5 |
| December | 5.3 | -3.0 | -9.7 | 11.7 |
View data table
| Month | Rainfall (mm) |
|---|---|
| January | 31 |
| February | 37 |
| March | 62 |
| April | 81 |
| May | 98 |
| June | 141 |
| July | 251 |
| August | 203 |
| September | 184 |
| October | 96 |
| November | 46 |
| December | 33 |
View data table
| Month | Sunshine hours (hr / day) |
|---|---|
| January | 6.1 |
| February | 6.9 |
| March | 7.2 |
| April | 7.2 |
| May | 7.1 |
| June | 6.2 |
| July | 4.5 |
| August | 4.9 |
| September | 4.8 |
| October | 5.5 |
| November | 5.7 |
| December | 5.6 |
View data table
| Month | Average wind speed (km/h) | Typical low | Typical high |
|---|---|---|---|
| January | 11.0 | 5.8 | 18.6 |
| February | 11.3 | 5.8 | 19.5 |
| March | 10.3 | 6.0 | 17.8 |
| April | 10.4 | 6.3 | 17.5 |
| May | 9.8 | 5.7 | 16.1 |
| June | 8.4 | 5.2 | 14.4 |
| July | 8.8 | 4.9 | 15.1 |
| August | 8.4 | 4.6 | 15.0 |
| September | 8.7 | 4.6 | 15.6 |
| October | 9.0 | 5.1 | 15.6 |
| November | 9.8 | 5.3 | 17.3 |
| December | 10.9 | 5.7 | 18.0 |
Snow depth for South Korea is part of the Premium map and its district-level detail. See what Premium includes.
Sea surface temperature for South Korea is part of the Premium map and its district-level detail. See what Premium includes.
Heat index for South Korea is part of the Premium map and its district-level detail. See what Premium includes.
Humidity for South Korea is part of the Premium map and its district-level detail. See what Premium includes.
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Plan a January trip to South Korea.
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