Jeju-do, South Korea Weather
- Jeju-do, South Korea Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- Temperature and possibility of rain in Jeju-do over the next 12 hours
- Temperature and possibility of rain in Jeju-do in the coming days
- Rainfall in Jeju-do in the coming days
- Jeju-do Weather Summary
- Weather averages by month
- Jeju-do's weather
- Frequently asked questions
- Comments
Current conditions
Condition: Mainly Clear
Pressure: 1,013 hPa
Feel like: 13 °C
Temperature: 15°C
Cloud: 46%
Humidity: 53%
Wind: E - 8 km/h
Visibility: 41.5 km
30 Day Averages and Extremes
- Average high 17.33°C
- Average low 13.23°C
- Hottest day 22°C (18 October 2026)
- Coldest day 9°C (06 November 2026)
- Average humidity 72.73%
- Days with precipitation 25 days
- Highest precipitation 100 mm (23 October 2026)
Yesterday's Data
- Max: 16°C
- Min: 11°C
- Total Precipitation: 0 mm
Temperature and possibility of rain in Jeju-do over the next 12 hours
Temperature and possibility of rain in Jeju-do in the coming days
Rainfall in Jeju-do in the coming days
Jeju-do Climate Summary
Jeju-do features a Humid subtropical, no dry season (Köppen classification: Cfa), with an average annual temperature of 15.87ºC (60.57ºF), which is about 2.27% higher than the national average for South Korea. Annually, the city experiences approximately 172.36 millimeters (6.79 inches) of rainfall, spread across 142.27 rainy days, accounting for 38.98% of the year.
| Longitude | 33.4890113 |
| Latitude | 126.4983023 |
| Yearly high temperature | 17.24ºC (63.03ºF) |
| Yearly low temperature | 13.35ºC (56.03ºF) |
| Hottest month | July 26.65ºC (79.97ºF) |
| Coldest month | December 5.6ºC (42.08ºF) |
| Yearly precip | 172.36mm (6.79in) |
| Days with rainfall | 142.27 days (38.98%) |
| Driest month | January (71.4%) |
| Wettest month | August (80.89%) |
Weather averages by month
| Month | High / Low (°C) | Rain |
|---|---|---|
| January | 6.87° / 3.64° | 13.09 days |
| February | 7.91° / 4.23° | 11.55 days |
| March | 11.12° / 6.83° | 9.64 days |
| April | 15.02° / 10.65° | 8.82 days |
| May | 19.28° / 14.85° | 9.0 days |
| June | 22.52° / 18.75° | 12.36 days |
| July | 26.65° / 22.86° | 15.18 days |
| August | 28.64° / 24.5° | 15.45 days |
| September | 24.71° / 20.9° | 13.91 days |
| October | 20.04° / 16.21° | 8.73 days |
| November | 15.06° / 11.21° | 11.18 days |
| December | 9.02° / 5.6° | 13.36 days |
Jeju-do's weather
Frequently asked questions
1. What is the hottest month in Jeju-do?
July has the highest average monthly temperature (daily mean of 26.65ºC) and December are the coolest (daily mean of 5.6ºC).
2. What should I wear in Jeju-do today?
For today's mild weather in Jeju-do, with temperatures between 14ºC to 17ºC (57.2ºF to 62.6ºF), consider wearing:
- Light jacket (for cooler periods)
- Long-sleeve shirt or blouse
- Cotton socks
- Casual sneakers or loafers
Temperature
Air quality
Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals
- CO2 449
- CO 247
- NH3 0
- NO2 7
- O3 97
- PM10 58
- PM25 23
- SO2 4
- CH4 1,415