Jeju Island 天気 予報
Jeju Island weather: 13°C, 快晴. 時間別 forecast, 14-day outlook, UV, air quality and the best timeからvisit.
Jeju Island weather in 9月
A workable month,、trade-offs.
9月 runs 9°C warmer than the annual average in Jeju Island.
天気 map for Jeju Island
Animated model layers. Pick a layerからload it.
Animated layers by 風y. For pin-level detail and nearby places, see the interactive map below.
気候 in Jeju Island month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 1月 | 8° | 3° | 97 mm | ★★★☆☆ |
| 2月 | 9° | 4° | 155 mm | ★★☆☆☆ |
| 3月 | 13° | 7° | 178 mm | ★★★☆☆ |
| 4月 | 18° | 12° | 159 mm | ★★★☆☆ |
| 5月 | 21° | 15° | 145 mm | ★★★★☆ |
| 6月 | 25° | 20° | 255 mm | ★★★☆☆ |
| 7月 | 30° | 25° | 185 mm | ★★★☆☆ |
| 8月 | 31° | 26° | 175 mm | ★★★☆☆ |
| 9月 | 28° | 24° | 161 mm | ★★★☆☆ |
| 10月 | 22° | 18° | 136 mm | ★★★☆☆ |
| 11月 | 16° | 11° | 182 mm | ★★★☆☆ |
| 12月 | 11° | 6° | 87 mm | ★★★☆☆ |
気候 type: 大陸al. 出典： Open-Meteo archive (ERA5).
訪問に最適な時期 Jeju Island
Go in 5月. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: 1月, 2月 and 3月 - expect the least comfortable mix of heat, cold or rain.
Whatからpack, whatからskip
- A packable rain shell - 3 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid 1月, 2月 and 3月 - historically the least comfortable months here.
How Jeju Island compares、nearby places
Annual averages, and the difference against Jeju Island.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Busan | 299 km | 15°C | 2°C cooler | 1407 mm |
| Haeundae Beach | 304 km | 15°C | 2°C cooler | 1378 mm |
| Incheon International Airport | 440 km | 13°C | 4°C cooler | 1215 mm |
| Seoul | 454 km | 13°C | 4°C cooler | 1327 mm |
| Gyeongbokgung Palace | 455 km | 13°C | 4°C cooler | 1293 mm |
時間帯別のJeju Island 予報を見る
Jeju Island weather - more answers
Explore Jeju Island
Every topic we hold for this place, and the same topic for the places around it.
天気 for related places
Frequently asked questions
Where is Jeju Island?
Jeju Island is an island in 韓国. Its coordinates are 33.4996, 126.5312. It lies in アジア.
What is the weather like in Jeju Island現在?
It is currently 13°C (56°F)、快晴. 湿度 is 57% and wind is 7 km/h.
When is the best timeからvisit Jeju Island?
5月 offer the most comfortable conditions in Jeju Island, which has a continental climate. 1月, 2月 and 3月 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 7:04 PM.
What is the nearest airportからJeju Island?
The closest airports are Incheon International Airport (ICN), 440 km away.
What are the top thingsから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. |
|---|---|
| 予報 and observations | Open-Meteo (ECMWF and national models). |
| 大気質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 気候 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 10月 28, 2026 at 7:04 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
