Jeju Island 氣候 and Average 天氣
氣候 of Jeju Island: average temperatures, rainfall and seasons month by month.
氣候 in Jeju Island month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月份 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 一月 | 8° | 3° | 97 mm | ★★★☆☆ |
| 二月 | 9° | 4° | 155 mm | ★★☆☆☆ |
| 三月 | 13° | 7° | 178 mm | ★★★☆☆ |
| 四月 | 18° | 12° | 159 mm | ★★★☆☆ |
| 五月 | 21° | 15° | 145 mm | ★★★★☆ |
| 六月 | 25° | 20° | 255 mm | ★★★☆☆ |
| 七月 | 30° | 25° | 185 mm | ★★★☆☆ |
| 八月 | 31° | 26° | 175 mm | ★★★☆☆ |
| 九月 | 28° | 24° | 126 mm | ★★★★☆ |
| 十月 | 22° | 18° | 149 mm | ★★★☆☆ |
| 十一月 | 16° | 11° | 182 mm | ★★★☆☆ |
| 十二月 | 11° | 6° | 87 mm | ★★★☆☆ |
氣候 type: 洲al. 來源： Open-Meteo archive (ERA5).
Recent extremes in Jeju Island
高est and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Jeju Island compares，天氣為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 | 1377 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 | 1293 mm |
| Gyeongbokgung Palace | 455 km | 13°C | 4°C cooler | 1293 mm |
氣候 by beach in Jeju Island
1 beaches mapped in this atlas
最佳旅遊時間 Jeju Island
Go in 五月 and 九月. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: 一月, 二月 and 三月 - expect the least comfortable mix of heat, cold or rain.
What this means for Jeju Island
Today is slightly cooler than average for 十月. The forecast high of 21°C is 1.5°C below the 22°C typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 97 mm is forecast, which is enough至soak trails and slow traffic.
能見度 is down至2,1 km - use low beams and leave extra following distance. 陣風至67 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 六月至八月.
The gap between the warmest and coldest month averages 22°C.
What至pack, what至skip
- Layers - the daily swing is 12°C, so mornings feel nothing like afternoons
- A packable rain shell - 4 of the next 7 days carry a real chance of rain
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 67 km/h.
- Avoid swimming outside patrolled areas - waves are running at 1.9 m.
- If your dates are flexible, avoid 一月, 二月 and 三月 - historically the least comfortable months here.
摘要
Jeju Island is an island in 南韓. Jeju Island is an island known for a volcanic island of waterfalls and trails.
目前氣溫為20°C (68°F) in Jeju Island，天氣為毛毛雨. 體感溫度為20°C. 今天氣溫介於19°C至21°C. 降雨機率為100%. Sightseeing conditions score 4.7/10 - 普通.
最佳旅遊時間是Jeju Island is 五月 and 九月. 氣候為continental. 一月, 二月 and 三月 tend至be the least comfortable months. 八月 is the warmest month，天氣為average highs near 31°C, while 一月 is the coldest，天氣為lows near 3°C.
The closest major airport is Incheon International Airport (ICN), about 440 km away. Nearby highlights include Hyeopjae Beach and Haeundae Beach.
簡單來說。 Today is slightly cooler than average for 十月. The forecast high of 21°C is 1.5°C below the 22°C typical for this month. The best window至be outside is roughly 8 AM至11 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Jeju Island today at 8.6/10. 能見度 is down至2,1 km - use low beams and leave extra following distance. 陣風至67 km/h will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Jeju Island
天氣 map for Jeju Island
Animated model layers. Pick a layer至load it.
Animated layers by 風y. For pin-level detail and nearby places, see the interactive map below.
Explore Jeju Island
Every topic we hold for this place, and the same topic for the places around it.
氣候 for related places
Frequently asked questions
Where is Jeju Island?
Jeju Island is an island in 南韓. Its coordinates are 33.4996, 126.5312. It lies in 亞洲.
What is the weather like in Jeju Island現在?
It is currently 20°C (68°F)，天氣為毛毛雨. 濕度 is 92% and wind is 24 km/h.
When is the best time至visit Jeju Island?
五月 and 九月 offer the most comfortable conditions in Jeju Island, which has a continental climate. 一月, 二月 and 三月 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 5:09 PM.
What is the nearest airport至Jeju Island?
The closest airports are Incheon International Airport (ICN), 440 km away.
What are the top things至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. |
|---|---|
| 預報 and observations | Open-Meteo (ECMWF and national models). |
| 空氣品質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 氣候 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 十月 25, 2026 at 5:09 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
