Jeju Island Weather Forecast
Jeju Island weather: 67°F, heavy rain. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Snow forecast for Jeju Island
No snow is in the current forecast window for Jeju Island.
0 of the next 16 nights are forecast to reach freezing.
Average monthly lows here stay above freezing all year, so lying snow is rare.
16-day forecast for Jeju Island
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Oct 23 | 🌧️ Heavy rain | 71° / 62° | 100% · 2,5 in | 15 mph | 4 |
| Sat, Oct 24 | 🌧️ Heavy rain | 69° / 67° | 100% · 5,9 in | 22 mph | 0 |
| Sun, Oct 25 | 🌧️ Heavy rain | 70° / 68° | 96% · 3,2 in | 32 mph | 1 |
| Mon, Oct 26 | 🌧️ Showers | 76° / 67° | 87% · 1,3 in | 19 mph | 0 |
| Tue, Oct 27 | 🌦️ Drizzle | 67° / 55° | 85% · 0,1 in | 18 mph | 5 |
| Wed, Oct 28 | 🌥️ Fog | 58° / 50° | 2% | 8 mph | 5 |
| Thu, Oct 29 | 🌦️ Light drizzle | 65° / 55° | 24% · 0,0 in | 2 mph | 1 |
| Fri, Oct 30 | 🌦️ Light drizzle | 71° / 60° | 55% · 0,1 in | 11 mph | 5 |
| Sat, Oct 31 | 🌦️ Light drizzle | 66° / 53° | 33% · 0,0 in | 18 mph | 5 |
| Sun, Nov 1 | 🌦️ Light drizzle | 55° / 50° | 30% · 0,1 in | 15 mph | 4 |
| Mon, Nov 2 | 🌦️ Light drizzle | 58° / 49° | 44% · 0,1 in | 11 mph | 5 |
| Tue, Nov 3 | 🌦️ Light drizzle | 58° / 49° | 19% · 0,1 in | 6 mph | 2 |
| Wed, Nov 4 | 🌧️ Heavy drizzle | 62° / 53° | 27% · 0,4 in | 10 mph | 5 |
| Thu, Nov 5 | 🌥️ Fog | 69° / 60° | 27% | 11 mph | 5 |
| Fri, Nov 6 | 🌦️ Drizzle | 63° / 57° | 30% · 0,3 in | 13 mph | 5 |
| Sat, Nov 7 | 🌧️ Heavy drizzle | 65° / 52° | 32% · 0,2 in | 15 mph | 4 |
Climate in Jeju Island month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 47° | 38° | 3,8 in | ★★★☆☆ |
| February | 49° | 40° | 6,1 in | ★★☆☆☆ |
| March | 56° | 45° | 7,0 in | ★★★☆☆ |
| April | 65° | 54° | 6,3 in | ★★★☆☆ |
| May | 71° | 60° | 5,7 in | ★★★★☆ |
| June | 77° | 69° | 10,0 in | ★★★☆☆ |
| July | 86° | 78° | 7,3 in | ★★★☆☆ |
| August | 87° | 79° | 6,9 in | ★★★☆☆ |
| September | 82° | 75° | 5,0 in | ★★★★☆ |
| October | 72° | 64° | 5,9 in | ★★★☆☆ |
| November | 62° | 52° | 7,2 in | ★★★☆☆ |
| December | 52° | 42° | 3,4 in | ★★★☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 58°F, so mornings feel nothing like afternoons
- A packable rain shell - 5 of the next 7 days carry a real chance of rain
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 32 mph.
- If your dates are flexible, avoid January, February and March - historically the least comfortable months here.
See the Jeju Island forecast by time range
Jeju Island weather - more answers
Explore Jeju Island
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Frequently asked questions
Where is Jeju Island?
Jeju Island is an island in South Korea. Its coordinates are 33.4996, 126.5312. It lies in Asia.
What is the weather like in Jeju Island right now?
It is currently 67°F (19°C) with heavy rain. Humidity is 93% and wind is 11 mph.
When is the best time to visit Jeju Island?
May and September offer the most comfortable conditions in Jeju Island, which has a continental climate. January, February and March are usually the hardest months for outdoor plans.
What time zone is Jeju Island in?
Jeju Island observes Asia/Seoul (UTC+09:00). The local time is 8:41 PM.
What is the nearest airport to Jeju Island?
The closest airports are Incheon International Airport (ICN), 274 mi away.
What are the top things to do in Jeju Island?
Popular options include Hyeopjae Beach and Haeundae Beach.
What places are in Jeju Island?
Jeju Island covers 1 places in this atlas, including Hyeopjae Beach.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated October 23, 2026 at 8:41 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
