Climate at a glance · Seoul
Annual mean55°day and night
Precipitation57.56 ina year
Warmest monthJulyavg high 86°
Coldest monthJanuaryavg low 19°
Average temperature by month
High · lowJanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation by month
57.56 in a yearJanFebMarAprMayJunJulAugSepOctNovDec
Monthly averages
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 36° | 41° | 54° | 64° | 72° | 81° | 86° | 84° | 79° | 66° | 54° | 37° |
| Avg low | 19° | 23° | 34° | 45° | 54° | 64° | 73° | 73° | 64° | 50° | 36° | 23° |
| Precip, in | 0.75 | 0.67 | 2.28 | 2.91 | 4.96 | 6.65 | 12.01 | 11.38 | 8.46 | 4.09 | 2.20 | 1.18 |
| Wet days | 4 | 4 | 7 | 7 | 9 | 13 | 18 | 18 | 11 | 9 | 6 | 5 |
| Sunshine | 7.4 h | 8.2 h | 8.6 h | 9 h | 9.4 h | 9.1 h | 8.6 h | 9 h | 8.2 h | 7.5 h | 7.6 h | 7.2 h |
| Humidity | 60% | 63% | 67% | 66% | 70% | 75% | 82% | 82% | 80% | 77% | 72% | 64% |
| Sea temperature | 38° | 35° | 40° | 51° | 61° | 73° | 82° | 86° | 81° | 71° | 59° | 47° |
| Daylight | 9 h 54 | 10 h 48 | 11 h 58 | 13 h 10 | 14 h 12 | 14 h 43 | 14 h 28 | 13 h 35 | 12 h 26 | 11 h 14 | 10 h 10 | 9 h 37 |
| UV index (clear sky) | 3 | 5 | 7 | 9 | 11 | 11 | 11 | 10 | 8 | 6 | 4 | 3 |
5-year averages (2021–2025) · Open-Meteo historical weather (ERA5)
37.5670°N, 126.9780°E