🇰🇷 Weather in Jeju City
Map Overlays:
Hourly Forecast for Jeju City
18:00
28°
7%
19:00
26°
9%
20:00
26°
10%
21:00
26°
9%
22:00
26°
8%
23:00
25°
8%
00:00
25°
8%
01:00
25°
9%
02:00
25°
9%
03:00
25°
10%
04:00
25°
10%
05:00
25°
9%
06:00
25°
10%
07:00
26°
9%
08:00
27°
6%
09:00
28°
5%
10:00
29°
4%
11:00
30°
4%
12:00
30°
4%
13:00
30°
5%
14:00
30°
13%
15:00
30°
17%
16:00
30°
4%
17:00
30°
6%
14-Day Forecast for Jeju City
2026-08-25
Sunny
29° /
24°
2026-08-26
Sunny
30° /
25°
2026-08-27
Partly Cloudy
30° /
26°
2026-08-28
Sunny
30° /
26°
2026-08-29
Patchy rain nearby
30° /
25°
2026-08-30
Patchy rain nearby
29° /
25°
2026-08-31
Patchy rain nearby
28° /
24°
Additional Forecasts for Jeju City
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 126.0 μg/m³
O₃ (Ozone) 79.0 μg/m³
NO₂ (Nitrogen Dioxide) 10.3 μg/m³
SO₂ (Sulphur Dioxide) 4.2 μg/m³
PM2.5 (Fine particles) 10.2 μg/m³
PM10 (Coarse particles) 11.1 μg/m³
Historical Weather
Weather Forecasts for Other Cities in South Korea
Weather in Jeju City — FAQ
Answers refreshed each request based on current conditions in Jeju City.
What is the weather like right now in Jeju City?
Right now in Jeju City, South Korea the temperature is 28.0°C (feels like 30.9°C), with sunny. Relative humidity is 72% and wind is 9.4 km/h.
What is today's high and low temperature in Jeju City?
Today's forecast high in Jeju City is 28.8°C and the overnight low is 24.3°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Jeju City today?
The chance of precipitation in Jeju City today is 11%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Jeju City differ from nearby cities?
Even short distances can change temperatures noticeably. Jeju City's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.