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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 | 2° | 5° | 12° | 17° | 22° | 27° | 29° | 29° | 25° | 18° | 12° | 3° |
| Cheonan | 3° | 5° | 13° | 19° | 23° | 28° | 31° | 30° | 26° | 19° | 13° | 4° |
| Hwaseong-si | 2° | 5° | 12° | 18° | 22° | 26° | 30° | 29° | 26° | 19° | 13° | 4° |
| Jeonju | 5° | 7° | 15° | 20° | 24° | 29° | 31° | 31° | 28° | 21° | 15° | 6° |
| 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 | 4° | 3° | 5° | 11° | 17° | 23° | 28° | 30° | 28° | 22° | 16° | 9° |
| Hwaseong-si | 4° | 1° | 5° | 10° | 15° | 22° | 28° | 29° | 28° | 22° | 15° | 8° |
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 | ▼ 6°C | -2°C | ▼ -3°C |
| Typical high | ▼ 12°C | 3°C | ▼ 2°C |
| Typical low | ▼ 2°C | -5°C | ▼ -7°C |
| Water temperature | ▼ 15.9°C | 8.6°C | ▼ 4.0°C |
| Precipitation | ▼ 59 mm | 24 mm | ▼ 21 mm |
| 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 · °C
December precipitation day by day mm
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: 10:43 AM
South Korea · 13 weather points · Climate reference: Seoul (37.57°N, 126.98°E) · Asia/Seoul