City · South Korea
Best time to visit Jeju
The best time to visit Jeju is April–June and September–November, with daytime temperatures around 22°C.
Jeju at a glance: warmest in August with daytime temperatures around 30°C and coolest in January (9°C). The wettest month is July (287 mm) and the driest December (54 mm), with about 1,700 mm of rain a year. The sea is warmest in August (28°C). Sunniest in October.
Eddigo
Loading climate data…
Jeju
50 mPleasantly warm
80
21°/14°16°155 mm47 %14 h
A typical mid-May in Jeju
Sunny 13Cloudy 8Rain 9
Daytime temperature (night ☾)
14°19°23°−1°33°
Sea temperature
16°−1°33°
Daylight (solar time)
05:0218:58
0006121824
13 h 57 m
Precipitation
0290 mm
155 mm
Air feel
FreshComfortableHumidMuggy
RH 71 %
Month by month
| Month | Score | Day | Night | Sea | Rain | Wet days | Sun | Daylight | Feels like |
|---|---|---|---|---|---|---|---|---|---|
| January | 38 | 9° | 2° | 15° | 57 mm | 11 | 52 % | 10 h | Chilly and showery |
| February | 39 | 10° | 3° | 14° | 79 mm | 11 | 45 % | 11 h | Chilly |
| March | 47 | 14° | 5° | 14° | 107 mm | 10 | 46 % | 12 h | Mild |
| April | 66 | 18° | 9° | 15° | 129 mm | 10 | 44 % | 13 h | Mild |
| May | 80 | 22° | 14° | 16° | 155 mm | 9 | 47 % | 14 h | Pleasantly warm |
| June | 65 | 25° | 18° | 20° | 215 mm | 12 | 26 % | 14 h | Rainy season · warm and showery |
| July | 51 | 28° | 23° | 25° | 287 mm | 14 | 31 % | 14 h | Rainy season · warm, showery and muggy |
| August | 50 | 30° | 24° | 28° | 271 mm | 13 | 44 % | 13 h | Rainy season · warm, showery and muggy |
| September | 69 | 26° | 20° | 25° | 186 mm | 11 | 37 % | 12 h | Rainy season · warm |
| October | 87 | 22° | 14° | 22° | 93 mm | 7 | 55 % | 11 h | Pleasantly warm |
| November | 65 | 16° | 9° | 19° | 69 mm | 9 | 49 % | 10 h | Mild |
| December | 38 | 11° | 4° | 17° | 54 mm | 11 | 49 % | 10 h | Chilly and showery |
The score (0–100) combines daytime temperature, rain days, humidity and cloud cover, weighted for a typical warm-weather trip: 20–28 °C, little rain. On the map you can change these preferences.
Climate averages 2016–2025 (ERA5, CRU TS). Sea temperature from ERA5. Not a forecast. Elevation: 47 m. Coordinates: 33.50, 126.53.