Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Jeju City is from April, May, October. — consistent weather climate
🌧Rainy
| Score | 21 | 28 | 47 | 74 | 78 | 47 | 27 | 23 | 44 | 75 | 60 | 25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cool & rainy | Humid | Rainy | Hot & rainy | Hot & rainy | Rainy | Rainy | Cool & rainy | Cold |
| Temperature | 3–8°C | 4–9°C | 7–13°C | 11–18°C | 16–22°C | 20–25°C | 24–29°C | 26–30°C | 22–26°C | 16–21°C | 11–16°C | 6–10°C |
| Feels like | -1–4°C | -1–6°C | 3–12°C | 9–17°C | 15–23°C | 21–28°C | 28–35°C | 30–36°C | 24–29°C | 16–21°C | 8–15°C | 1–7°C |
| Precipitation | 104mm 16 days | 88mm 13 days | 122mm 10 days | 132mm 10 days | 141mm 10 days | 213mm 14 days | 239mm 18 days | 231mm 18 days | 356mm 20 days | 158mm 11 days | 118mm 12 days | 88mm 15 days |
| Sunshine | 4.4h ☀︎ 43% | 5.6h ☀︎ 51% | 7.8h ☀︎ 65% | 8.5h ☀︎ 65% | 8.9h ☀︎ 64% | 6.5h ☀︎ 46% | 6.9h ☀︎ 49% | 10.4h ☀︎ 78% | 7.1h ☀︎ 57% | 8.0h ☀︎ 70% | 6.7h ☀︎ 64% | 4.3h ☀︎ 44% |
| Wind | NW · 23 km/h | NW · 23 km/h | NW · 21 km/h | NW · 20 km/h | SW · 18 km/h | E · 17 km/h | SE · 18 km/h | E · 18 km/h | NE · 20 km/h | NE · 21 km/h | N · 21 km/h | NW · 23 km/h |
| Humidity (%) | 75% | 74% | 74% | 75% | 75% | 85% | 87% | 84% | 84% | 77% | 76% | 74% |
| Day length | 10.2h | 11.0h | 12.0h | 13.0h | 13.9h | 14.3h | 14.1h | 13.4h | 12.4h | 11.3h | 10.4h | 10.0h |
This traditional festival sets a hillside oreum ablaze at night to mark the first full moon of the lunar year, following…
Most travelers arrive in Jeju City when spring blooms or when winter holidays peak, but October quietly delivers the island's finest walking weather with the year's thinnest crowds.
The flight corridor from Seoul into Jeju International Airport is the busiest stretch of sky on earth, funneling millions of visitors each year into an island capital hemmed between volcanic ocean rock and the slopes of Mount Hallasan. Most travelers assume spring brings the best of the island, seduced by cherry blossoms and mild sunshine, while year-end vacationers pour into the casinos and waterfront resorts of Tapdong throughout December. Yet December brings the year's absolute peak crowd crush alongside biting, overcast sea winds, and spring fills the coastal promenades to capacity. The real secret of Jeju City is autumn—specifically October—when the typhoon season abruptly breaks, leaving crisp, luminous air and uncrowded streets before the winter rush begins.
A conventional forecast will tell you that May offers marginally warmer afternoons, but a forecast does not have to fight for elbow room at the stalls of Dongmun Market or wait in snaking queues along the coastal walks. October is the undisputed sweet spot for Jeju City. The air holds an effortless, crisp warmth—around 21 degrees that registers exactly as that on your skin—without the muggy drag of late summer or the chilling gusts that sweep in off the Korea Strait a few weeks later.
Crucially, tourist density plummets to its lowest point on the calendar. You can wander past the black volcanic reefs at Yongduam Rock without dodging tour buses, or watch the sun slide into the sea from the red-and-white horse-shaped lighthouses of Iho Tewoo Beach in relative solitude. The summer typhoons have exhausted themselves, leaving behind deep, steady blue skies and long stretches of dry daylight. It is the only month where you experience the island capital at its most generous: calm, comfortable, and blissfully unhurried.
Spring across Jeju is undeniably lovely on paper, but it comes at a significant cost in space and patience. April and May bring lush greenery, warm breezes, and abundant sunshine that lures massive waves of mainland travelers across the strait. By late April, the urban coast feels less like an island escape and more like a crowded extension of Seoul.
May does post slightly higher daily temperatures than October, making sitting outside along the Tapdong seaside plaza tempting, but it does so while carrying significantly higher visitor numbers. The coastal paths around Sarabong park fill with walking groups, and the seafood stalls in the city center are packed wall-to-wall by sundown. If you visit in spring, go in with your eyes open: the weather will reward you generously, but the solitude you might imagine on a volcanic island will remain elusive.
Summer in Jeju City is thick, relentless, and soaked in water. Starting in late June, the monsoon front settles over the island, driving humidity through the roof and turning short walks down the street into drenching endeavors. July and August bring daytime temperatures near 30 degrees that feel closer to the high thirties when the heavy, salt-laden moisture traps the heat against the pavement.
Rain does not fall here as polite drizzles; it arrives in heavy, plan-ruining downpours, culminating in September when tropical depressions and seasonal typhoons dump record rainfall across the coast. When the rain clears in August, families pack the sands at Iho Tewoo Beach, but exploring the city itself during the midday sun is exhausting. Unless your entire itinerary revolves around sea swimming, this is the most demanding window of the year to navigate.
December presents the single sharpest paradox in Jeju City's travel calendar. It is the busiest month of the entire year, drawing travelers eager for festive breaks, duty-free shopping, and glittering harbor hotels. Yet it is also one of the grimmest times to actually be outside. The thermometer sinks into single digits, and the relentless northerly wind off the Yellow Sea strips away body heat, making it feel like 7 degrees or colder under persistent grey cloud cover.
January and February stay equally cold, gloomy, and raw, though the crushing holiday crowds finally thin out. The volcanic basalt rocks along the coast turn slick and dark under frequent flurries and winter rain, and the expansive sea-facing promenades become bracing wind tunnels. If you find yourself in the city during late winter, retreat indoors to steaming bowls of pork noodle soup in the old alleys, and save outdoor coastal exploration for warmer horizons.
March serves as the bridge out of the winter chill, though it remains a cool, coat-worthy month where daytime highs rarely climb past 13 degrees. Coastal breezes still carry a sharp nip, but the hours of daily sunshine begin to stretch noticeably, signaling the island's emergence from winter dormancy.
The real draw to braving the lingering chill is the Jeju Fire Festival, held during March to celebrate the first full moon of the lunar year. The spectacle of hillside burning and age-old agrarian rituals draws substantial crowds into the city and surrounding districts. It is brisk, dramatic, and intensely atmospheric, provided you arrive bundled against the evening winds that sweep down from the highlands.