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South Korea climate by month
8-year averages · when to visit| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seoul | 36° | 41° | 54° | 63° | 72° | 81° | 84° | 84° | 77° | 64° | 54° | 37° |
| Cheonan | 37° | 41° | 55° | 66° | 73° | 82° | 88° | 86° | 79° | 66° | 55° | 39° |
| Hwaseong-si | 36° | 41° | 54° | 64° | 72° | 79° | 86° | 84° | 79° | 66° | 55° | 39° |
| Jeonju | 41° | 45° | 59° | 68° | 75° | 84° | 88° | 88° | 82° | 70° | 59° | 43° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seoul | 4 | 4 | 7 | 7 | 9 | 11 | 17 | 18 | 11 | 7 | 6 | 4 |
| Cheonan | 5 | 4 | 7 | 7 | 9 | 10 | 17 | 17 | 12 | 9 | 7 | 5 |
| Hwaseong-si | 6 | 4 | 6 | 8 | 9 | 11 | 16 | 18 | 11 | 8 | 6 | 6 |
| Jeonju | 6 | 6 | 8 | 8 | 9 | 13 | 20 | 21 | 12 | 8 | 8 | 7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seoul | 39° | 37° | 42° | 52° | 62° | 74° | 82° | 87° | 82° | 71° | 61° | 47° |
| Hwaseong-si | 38° | 34° | 40° | 50° | 59° | 71° | 82° | 85° | 82° | 71° | 58° | 47° |
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
Seoul climate in December
8-year averages · when to visitBest months: May–September · December: Acceptable
| November | December | January | |
|---|---|---|---|
| Average temperature | ▼ 43°F | 28°F | ▼ 27°F |
| Typical high | ▼ 54°F | 37°F | ▼ 36°F |
| Typical low | ▼ 36°F | 23°F | ▼ 19°F |
| Water temperature | ▼ 61°F | 47°F | ▼ 39°F |
| Precipitation | ▼ 2.3 in | 0.9 in | ▼ 0.8 in |
| Wet days | ▼ 6 d | 4 d | → 4 d |
| Humidity | ▼ 70% | 65% | ▼ 64% |
| Sunshine per day | ▼ 7.6 h | 7.2 h | ▲ 7.6 h |
| Cloud cover | → 25% | 25% | ▼ 24% |
| Midday UV | ▼ 4 | 3 | → 3 |
| Daylight | 10:10 | 9:37 | 9:54 |
| Our take | Acceptable | Acceptable | Acceptable |
December temperatures day by day daily mean + smoothed trend · °F
December precipitation day by day in
December UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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Updated: 2:56 AM
South Korea · 13 weather points · Climate reference: Seoul (37.57°N, 126.98°E) · Asia/Seoul