Live Weather & Forecast
Weather in Cheju
South Korea · Real-time conditions & 3-day outlook
28°C
Feels like 30°C
82°F / Feels 86°F
Cloudy
Cheju, South Korea
🌞 Daytime
Updated: 2026-04-15 09:30
Humidity
66%
Wind
14.4 km/h S
Wind Gust
16.6 km/h
Pressure
1011 mb
Visibility
10 km
UV Index
2.3
(Low)
Precipitation
0 mm
Cloud Cover
67%
Dew Point
20.9°C
Wind Degree
171°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
164.9 μg/m³
NO₂
13.4 μg/m³
O₃
49 μg/m³
SO₂
4.2 μg/m³
PM 2.5
12.8 μg/m³
PM 10
16.2 μg/m³
Today's Hourly Forecast
24-hour breakdown for Cheju, South Korea
12 AM
25°
Patchy rain nearby
1 AM
25°
Patchy rain nearby
2 AM
24°
Patchy rain nearby
3 AM
24°
Clear
4 AM
24°
Patchy rain nearby
5 AM
24°
Patchy rain nearby
6 AM
24°
Patchy rain nearby
7 AM
24°
Patchy rain nearby
8 AM
26°
Sunny
9 AM
28°
Cloudy
10 AM
29°
Partly Cloudy
11 AM
30°
Sunny
12 PM
31°
Sunny
1 PM
31°
Sunny
2 PM
31°
Partly Cloudy
3 PM
31°
Partly Cloudy
4 PM
30°
Sunny
5 PM
29°
Partly Cloudy
6 PM
28°
Partly Cloudy
7 PM
27°
Partly Cloudy
8 PM
27°
Partly Cloudy
9 PM
26°
Clear
10 PM
25°
Clear
11 PM
25°
Clear
3-Day Forecast
Daily overview for Cheju, South Korea
Today
Patchy rain nearby
31°
/
24°
🌧️ 88% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 24.5 km/h
🌧️ Total precip: 0.13 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:09 AM
🌇 Sunset: 06:49 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Patchy rain nearby
30°
/
23°
🌧️ 89% chance of rain
💧 Avg. humidity: 71%
💨 Max wind: 24.1 km/h
🌧️ Total precip: 0.22 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:08 AM
🌇 Sunset: 06:49 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Partly Cloudy
32°
/
22°
🌧️ 0% chance of rain
💧 Avg. humidity: 68%
💨 Max wind: 11.5 km/h
🌧️ Total precip: 0.04 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:08 AM
🌇 Sunset: 06:50 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Cheju
Plan your trip around the most favorable weather conditions in Cheju, South Korea.
Peak Season
November – April
Dry season — low humidity, clear skies, comfortable temperatures.
Shoulder Season
May, October
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Wet/monsoon season; heavier rainfall possible.
Frequently Asked Questions
What is the current weather in Cheju?
Current conditions in Cheju: Cloudy, temperature 28°C, humidity 66%.
What is the best time to visit Cheju?
The best time to visit Cheju is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in Cheju?
Cheju shares the climate of South Korea. It has a tropical or subtropical climate.
Does it rain a lot in Cheju?
Rainfall patterns in Cheju vary by season. Being in a tropical zone, Cheju can experience heavy rainfall during the wet season (June – September).
What should I pack for Cheju?
For visits during November – April: light clothing and sun protection. For the June – September period: layers and a waterproof jacket are recommended for Cheju.
What country is Cheju in?
Cheju is a state/province of South Korea.
What are the public holidays in Cheju in 2026?
View the full list of 2026 public holidays for Cheju on our Holidays page.
What are the coordinates for the weather forecast in Cheju?
The weather forecast for Cheju is based on coordinates 22.1996, 112.7016.