Jeju Island Weather Forecast
Jeju Island weather: 71°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-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% · 3,3 in | 15 mph | 3 |
| Sat, Oct 24 | 🌧️ Heavy rain | 69° / 68° | 100% · 4,3 in | 16 mph | 0 |
| Sun, Oct 25 | 🌧️ Rain | 72° / 69° | 98% · 1,0 in | 19 mph | 1 |
| Mon, Oct 26 | ⛈️ Thunderstorm | 77° / 69° | 84% · 2,7 in | 16 mph | 0 |
| Tue, Oct 27 | 🌧️ Showers | 69° / 55° | 88% · 0,3 in | 19 mph | 5 |
| Wed, Oct 28 | ☁️ Overcast | 56° / 52° | 4% | 13 mph | 5 |
| Thu, Oct 29 | 🌦️ Drizzle | 67° / 55° | 14% · 0,1 in | 6 mph | 1 |
| Fri, Oct 30 | 🌧️ Heavy drizzle | 74° / 60° | 49% · 0,4 in | 13 mph | 5 |
| Sat, Oct 31 | 🌦️ Light drizzle | 66° / 51° | 43% · 0,1 in | 19 mph | 5 |
| Sun, Nov 1 | 🌦️ Light drizzle | 54° / 51° | 29% · 0,1 in | 11 mph | 5 |
| Mon, Nov 2 | 🌦️ Light drizzle | 57° / 47° | 36% · 0,1 in | 12 mph | 4 |
| Tue, Nov 3 | ☁️ Overcast | 50° / 45° | 17% | 10 mph | 5 |
| Wed, Nov 4 | 🌤️ Mainly clear | 53° / 42° | 25% | 7 mph | 5 |
| Thu, Nov 5 | 🌥️ Fog | 60° / 47° | 31% | 9 mph | 5 |
The two-week trend
Cooling. The second half of the window averages 42°F cooler than the days immediately ahead.
The window averages 65°F against a October normal of 72°F - 39°F below.
The next 7 days carry about 8.6 times a normal week's rain for October (11,7 in against 1,4 in).
What this means for Jeju Island
Today is about average for October. The forecast high of 71°F is in line with the 72°F typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 3,3 in is forecast, which is enough to soak trails and slow traffic.
Gusts to 35 mph will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 72°F.
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- 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 35 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
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
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 71°F (22°C) with overcast. Humidity is 71% and wind is 13 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 1:26 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 1:26 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
