Jeju Island Veður Spá
Jeju Island weather: 24°C, skýjað að hluta. Á klukkustund forecast, 14-day outlook, UV, air quality and the best time til visit.
Risk assessment for Jeju Island
Derived from the current forecast window - not an official warning.
Peak gusts of 64 km/h and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 33 mm, 101 mm across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for Jeju Island
Derived from the forecast. No official alert feed is wired for this country yet.
16-day forecast for Jeju Island
Hæst / Lægst; Úrkoma; UV
| Dagur | Aðstæður | Hæst / Lægst | Úrkoma | Vindur | UV |
|---|---|---|---|---|---|
| fim., sep 17 | ☁️ Skýjað | 25° / 21° | 100% | 28 km/h | 3 |
| fös., sep 18 | 🌧️ Heavy rain | 23° / 22° | 100% · 33 mm | 30 km/h | 1 |
| lau., sep 19 | 🌦️ Light drizzle | 25° / 22° | 75% · 1 mm | 23 km/h | 4 |
| sun., sep 20 | ⛅ Skýjað að hluta | 25° / 21° | 27% | 17 km/h | 7 |
| mán., sep 21 | ☀️ Heiðskýrt | 25° / 20° | 4% | 6 km/h | 7 |
| þri., sep 22 | ⛅ Skýjað að hluta | 26° / 20° | 2% | 22 km/h | 7 |
| mið., sep 23 | ☁️ Skýjað | 25° / 19° | 8% | 17 km/h | 7 |
| fim., sep 24 | ☁️ Skýjað | 25° / 21° | 12% | 14 km/h | 6 |
| fös., sep 25 | 🌦️ Light drizzle | 25° / 22° | 34% · 2 mm | 12 km/h | 7 |
| lau., sep 26 | 🌦️ Light drizzle | 29° / 22° | 63% · 1 mm | 20 km/h | 7 |
| sun., sep 27 | 🌧️ Skúrir | 26° / 22° | 63% · 25 mm | 24 km/h | 4 |
| mán., sep 28 | 🌦️ Light showers | 24° / 20° | 41% · 9 mm | 5 km/h | 7 |
| þri., sep 29 | 🌧️ Skúrir | 22° / 19° | 29% · 29 mm | 14 km/h | 7 |
| mið., sep 30 | ⛅ Skýjað að hluta | 22° / 17° | 29% | 14 km/h | 7 |
| fim., okt 1 | ☁️ Skýjað | 22° / 16° | 22% | 15 km/h | 6 |
| fös., okt 2 | ☁️ Skýjað | 23° / 19° | 23% | 11 km/h | 1 |
What this means for Jeju Island
Today is slightly cooler than average for september. The forecast high of 25°C is 3°C below the 28°C typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives.
Vindhviður til 64 km/h 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 júní til ágúst.
The gap between the warmest and coldest month averages 22°C.
Sjá spá fyrir Jeju Island eftir tímabili
Jeju Island weather - more answers
Explore Jeju Island
Every topic we hold for this place, and the same topic for the places around it.
Veður for related places
Frequently asked questions
Where is Jeju Island?
Jeju Island is an island in Suður-Kórea. Its coordinates are 33.4996, 126.5312. It lies in Asía.
What is the weather like in Jeju Island núna?
It is currently 24°C (75°F) með skýjað að hluta. Raki is 78% and wind is 25 km/h.
When is the best time til visit Jeju Island?
maí offer the most comfortable conditions in Jeju Island, which has a continental climate. janúar, febrúar and mars 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 til Jeju Island?
The closest airports are Incheon International Airport (ICN), 440 km away.
What are the top things til 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.
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| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Spá and observations | Open-Meteo (ECMWF and national models). |
| Loftgæði and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Loftslag 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 september 17, 2026 at 8:41 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
