Live weather in Jeju City, currently 29°C with patchy rain nearby. View the 7-day forecast, hourly conditions, and air quality index. Jeju City is in South Korea — see weather across all major cities in South Korea, or browse the hottest cities right now worldwide.
28.7°C
feels like 34.0°C
Patchy rain nearby
Current Weather in Jeju City, South Korea Updated at 11:00 AM today
| 💧 Humidity: | 80% |
| 🌬️ Wind: | 25.2 kph (76°) |
| 🌡️ Pressure: | 1006.0 mb |
| 👁️ Visibility: | 10.0 km |
| 🌧️ Precipitation: | 0.0 mm |
| ☁️ Cloud Cover: | 62% |
| ☀️ UV Index: | 5.0 |
| 🌅 Sunrise: | 05:49 AM |
| 🌇 Sunset: | 07:29 PM |
It's genuinely hot in Jeju City: 29°C and patchy rain. Expect spots of light rain over the next while. With the humidity it feels much hotter — like 34°C on the skin. There's a noticeable 25 kph wind out of the west. Heavy, tropical air right now — 80% humidity.
Air quality is good right now (US EPA index 1, PM2.5 11) — fine for outdoor exercise. UV is moderate at 5; sunglasses and light cover are sensible around midday. Daylight runs from 05:49 AM to 07:29 PM today — about 13h 40m.
Rain is unlikely — about a 28% chance, 0 mm at most. You can leave the umbrella at home — it stays dry. Today is about typical for August in Jeju City.
It's an unsettled week ahead, with the wettest day looking like Monday. Today's high stays well short of Jeju City's record for the date, 34°C.
Bottom line: take an umbrella if you're heading out in Jeju City today.
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US EPA Index
Environmental Protection Agency
UK DEFRA Index
Department for Environment, Food & Rural Affairs
| Parameter | Value |
|---|---|
| US EPA Index: | 1 (Good) |
| UK DEFRA Index: | 1 (Low) |
| CO: | 138.0 µg/m³ |
| O3: | 95.0 µg/m³ |
| NO2: | 7.2 µg/m³ |
| SO2: | 3.2 µg/m³ |
| PM2.5: | 10.6 µg/m³ |
| PM10: | 15.0 µg/m³ |
Jeju City sits on the northern coast of Jeju Island, South Korea’s volcanic gem. The vibe is a relaxed blend of seaside charm and rugged nature, dominated by the towering Hallasan, a dormant volcano at the island’s center. Well-known sights include the volcanic cones of Seongsan Ilchulbong, lava tubes like Manjanggul, and the iconic stone grandfather statues (dol hareubang) scattered across the landscape. Tangerine orchards and camellia forests add bursts of color, while the coastal cliffs and black sand beaches give the city a distinct, untamed beauty. Geographically, this island lies off the southern tip of the Korean Peninsula, bathed by the warm East China Sea.
Under the Köppen classification Cfa, Jeju City enjoys a humid subtropical climate. Summers are hot and muggy, with July and August averaging around 27°C (81°F) and high humidity often making the air feel thicker. The summer monsoon (jangma) brings heavy rain from late June through July. Winters are mild by Korean standards, with January highs near 8°C (46°F), but coastal winds can bite. Snowfall is rare at sea level, though Hallasan’s peak often wears a white cap. Rainfall is plentiful year-round, peaking in summer. A smart packing list includes lightweight, breathable fabrics for the sticky heat, a rain jacket, and a warm sweater or windbreaker for cooler months.
The best time to visit weather-wise is spring (April to May) or autumn (September to October), when temperatures are pleasant and rainfall less oppressive. Spring brings cherry blossoms and moderate humidity; autumn offers crisp air and clear skies. Notable weather phenomena include the intense monsoon downpours that can disrupt outdoor plans, and occasional typhoons brushing the island in late summer and early fall. Fog often rolls in during spring mornings, enshrouding the volcano in mystery. For those willing to dodge the rain, late May and late September offer a sweet spot of comfort and fewer crowds.
These cities share Jeju City's local time (Asia/Seoul) — useful for scheduling calls or comparing daylight hours.