Jeju Island 気候 and Average 天気
気候 of Jeju Island: average temperatures, rainfall and seasons month by month.
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° | 126 mm | ★★★★☆ |
| 10月 | 22° | 18° | 149 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).
Recent extremes in Jeju Island
高いest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
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 | 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 |
気候 by beach in Jeju Island
1 beaches mapped in this atlas
訪問に最適な時期 Jeju Island
Go in 5月 and 9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 this means for Jeju Island
Today is about average for 10月. The forecast high of 22°C is in line、the 22°C typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 51 mm is forecast, which is enoughからsoak trails and slow traffic.
突風から52 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 6月から8月.
The gap between the warmest and coldest month averages 22°C.
Whatからpack, whatからskip
- 日glasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 14°C, 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 52 km/h.
- If your dates are flexible, avoid 1月, 2月 and 3月 - historically the least comfortable months here.
概要
Jeju Island is an island in 韓国. Jeju Island is an island known for a volcanic island of waterfalls and trails.
現在の気温は19°C (66°F) in Jeju Island、heavy rain. 体感温度は19°C. 今日の気温は17°Cから22°C. 降水確率は100%. Sightseeing conditions score 6.9/10 - 普通 — 天候に合わせて計画してください.
訪問に最適な時期はJeju Island is 5月 and 9月. 気候はcontinental. 1月, 2月 and 3月 tendからbe the least comfortable months. 8月 is the warmest month、average highs near 31°C, while 1月 is the coldest、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.
簡単に言うと。 Today is about average for 10月. The forecast high of 22°C is in line、the 22°C typical for this month. The best windowからbe outside is roughly 3 PMから6 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Jeju Island today at 9/10. 突風から52 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.
Explore Jeju Island
Every topic we hold for this place, and the same topic for the places around it.
気候 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 19°C (66°F)、heavy rain. 湿度 is 90% and wind is 17 km/h.
When is the best timeからvisit Jeju Island?
5月 and 9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 5:44 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 23, 2026 at 5:44 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
