Weather in Jeju Today
Current temperature in Jeju: 21°C (70°F). Drizzle. Today's high 24°C (75°F), low 15°C (59°F).
Today's Daylight Forecast
Moon & Islamic Calendar
Very high UV today. Limit sun exposure around midday. Apply SPF 30+ every 2 hours and seek shade.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs Normal
The long-term average high for today is 26°C.
18 of the last 19 days with published data ran above normal.
That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Health & Activity Advice
UV index is 9 today — very high. Limit sun exposure around midday, apply SPF 30+ every two hours, and seek shade when possible.
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.
Nearby Regional Outlook
Jeju Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in Jeju?
The hottest month in Jeju is typically June, with daytime highs averaging around 26.8°C (80°F), based on 10 years of historical weather data. Overnight lows during this period average near 16.4°C (62°F).
What is the coldest month in Jeju?
The coldest month in Jeju is typically January, with overnight lows averaging around 13.1°C (56°F) and daytime highs near 23.6°C (74°F), based on 10 years of historical weather data.
Does Jeju have a rainy season?
Jeju doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. August is the wettest month on average (about 101 mm), while December is the driest (about 10 mm).
What's the best time of year to visit Jeju?
The best time to visit Jeju is typically December to January, when daytime highs average a comfortable 23.5°C (74°F). Rainfall during this window averages around 13 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.