Climate averages 1991–2020
Weather in South Korea in January
In January, average daytime highs across the 79 cities listed in South Korea range from 1.0°C in Chuncheon to 8.1°C in Seogwipo. Monthly precipitation ranges from 17 mm in Goyang-si to 73 mm in Jeju City.
Long-term climate patterns, not a forecast for a particular trip.
City by city
January in South Korea
| City | Average highHigh / low | Average low | Precipitation mm | Wet days |
|---|---|---|---|---|
| Seoul | 1.6°C-6.9°C | -6.9°C | 19 | 3.5 |
| Busan | 6.5°C0.5°C | 0.5°C | 37 | 4.6 |
| Incheon | 1.4°C-5.8°C | -5.8°C | 18 | 3.6 |
| Daegu | 4.7°C-3.3°C | -3.3°C | 22 | 3.3 |
| Daejeon | 3.4°C-4.1°C | -4.1°C | 24 | 4.8 |
| Gwangju | 4.6°C-2.9°C | -2.9°C | 28 | 5.2 |
| Suwon | 1.9°C-5.9°C | -5.9°C | 20 | 3.8 |
| Ulsan | 6.1°C-1.0°C | -1.0°C | 31 | 4.4 |
| Goyang-si | 1.5°C-6.9°C | -6.9°C | 17 | 3.5 |
| Changwon | 6.2°C-1.4°C | -1.4°C | 28 | 3.8 |
| Seongnam-si | 1.7°C-6.3°C | -6.3°C | 20 | 3.8 |
| Cheongju-si | 3.0°C-4.6°C | -4.6°C | 22 | 4.5 |
| Bucheon-si | 1.7°C-6.0°C | -6.0°C | 18 | 3.6 |
| Cheonan | 2.7°C-4.7°C | -4.7°C | 22 | 4.2 |
| Hwaseong-si | 1.8°C-3.9°C | -3.9°C | 22 | 4.1 |
| Jeonju | 3.7°C-3.8°C | -3.8°C | 29 | 5.9 |
| Ansan-si | 1.9°C-4.9°C | -4.9°C | 22 | 4.1 |
| Anyang-si | 1.7°C-5.7°C | -5.7°C | 19 | 3.5 |
| Kimhae | 6.4°C-0.8°C | -0.8°C | 30 | 4.2 |
| Pohang | 5.2°C-1.5°C | -1.5°C | 27 | 4.4 |
| Jeju City | 8.0°C4.7°C | 4.7°C | 73 | 11.7 |
| Uijeongbu-si | 1.5°C-6.9°C | -6.9°C | 18 | 3.5 |
| Paju | 1.4°C-7.2°C | -7.2°C | 17 | 3.5 |
| Masan | 4.9°C-2.6°C | -2.6°C | 27 | 5.3 |
| Gumi | 4.0°C-3.8°C | -3.8°C | 23 | 3.7 |
| Sejong | 2.9°C-4.6°C | -4.6°C | 22 | 4.3 |
| Pyeongtaek | 2.3°C-5.2°C | -5.2°C | 20 | 4.1 |
| Yangsan | 6.5°C-1.3°C | -1.3°C | 30 | 4.2 |
| Gwangmyeong | 1.7°C-6.4°C | -6.4°C | 18 | 3.6 |
| Wŏnju | 1.4°C-7.0°C | -7.0°C | 24 | 4.5 |
| Chinju | 5.7°C-3.9°C | -3.9°C | 29 | 4.0 |
| Iksan | 3.7°C-3.5°C | -3.5°C | 23 | 4.9 |
| Chuncheon | 1.0°C-7.6°C | -7.6°C | 21 | 3.9 |
| Suncheon | 5.7°C-2.4°C | -2.4°C | 29 | 4.1 |
| Yeosu | 5.8°C-0.1°C | -0.1°C | 34 | 4.2 |
| Mokpo | 5.0°C0.1°C | 0.1°C | 34 | 6.8 |
| Gyeongsan-si | 5.0°C-3.1°C | -3.1°C | 22 | 3.3 |
| Gunsan | 3.4°C-2.1°C | -2.1°C | 23 | 5.1 |
| Hanam | 1.8°C-6.6°C | -6.6°C | 20 | 3.8 |
| Gyeongju | 5.4°C-2.8°C | -2.8°C | 29 | 4.3 |
| Osan | 2.2°C-5.5°C | -5.5°C | 20 | 3.8 |
| Geoje | 6.8°C2.4°C | 2.4°C | 42 | 5.2 |
| Chungju | 1.9°C-6.0°C | -6.0°C | 24 | 4.8 |
| Gangneung | 2.5°C-4.1°C | -4.1°C | 44 | 5.7 |
| Gimpo-si | 1.4°C-6.1°C | -6.1°C | 18 | 3.6 |
| Icheon-si | 1.9°C-6.2°C | -6.2°C | 22 | 4.4 |
| Guri-si | 1.5°C-6.9°C | -6.9°C | 20 | 3.8 |
| Yangju | 1.4°C-7.2°C | -7.2°C | 18 | 3.5 |
| Seogwipo | 8.1°C4.1°C | 4.1°C | 56 | 8.3 |
| Gijang | 6.4°C0.7°C | 0.7°C | 37 | 5.0 |
| Gwangyang | 5.6°C-2.6°C | -2.6°C | 30 | 3.9 |
| Andong | 3.1°C-4.7°C | -4.7°C | 20 | 3.5 |
| Gimcheon | 3.6°C-4.2°C | -4.2°C | 26 | 4.4 |
| Jeongeup | 3.9°C-3.1°C | -3.1°C | 29 | 5.9 |
| Yeoju | 1.9°C-6.3°C | -6.3°C | 22 | 4.3 |
| Hwado | 1.2°C-7.2°C | -7.2°C | 21 | 3.7 |
| Sangju | 3.4°C-4.4°C | -4.4°C | 21 | 3.9 |
| Donghae City | 2.9°C-4.2°C | -4.2°C | 45 | 5.8 |
| Asan | 2.6°C-4.8°C | -4.8°C | 21 | 4.1 |
| Wabu | 1.5°C-7.0°C | -7.0°C | 20 | 3.8 |
| Boryeong | 3.4°C-2.3°C | -2.3°C | 25 | 5.7 |
| Muan | 5.1°C-1.0°C | -1.0°C | 25 | 4.5 |
| Kwangyang | 5.7°C-2.2°C | -2.2°C | 29 | 4.1 |
| Hongseong | 2.9°C-3.9°C | -3.9°C | 22 | 4.6 |
| Yeongju | 2.3°C-6.0°C | -6.0°C | 21 | 3.5 |
| Yangp'yŏng | 2.1°C-6.3°C | -6.3°C | 21 | 3.8 |
| Ungsang | 5.9°C-0.9°C | -0.9°C | 31 | 4.4 |
| Sinhyeon | 6.7°C1.9°C | 1.9°C | 36 | 4.4 |
| Gwangju, South Korea | 2.0°C-6.1°C | -6.1°C | 20 | 3.8 |
| Nangen | 4.1°C-3.8°C | -3.8°C | 31 | 5.4 |
| Sokcho | 1.4°C-5.9°C | -5.9°C | 43 | 6.4 |
| Naesŏ | 6.0°C-2.0°C | -2.0°C | 25 | 3.5 |
| Mungyeong | 2.6°C-5.2°C | -5.2°C | 21 | 3.9 |
| Hongch’ŏn | 1.0°C-7.6°C | -7.6°C | 22 | 4.3 |
| Changnyeong | 5.5°C-3.6°C | -3.6°C | 22 | 3.4 |
| Seosan | 2.5°C-2.8°C | -2.8°C | 22 | 4.8 |
| Koch'ang | 4.3°C-2.1°C | -2.1°C | 28 | 5.9 |
| Gongju | 3.3°C-3.9°C | -3.9°C | 22 | 4.2 |
| Tongyeong | 6.2°C0.2°C | 0.2°C | 39 | 4.5 |
A wet day is a local calendar day with at least 1 mm of precipitation.