Things to Do in Jeju in December

December is firmly off-season on Jeju, which means lower hotel rates, uncrowded volcanic landscapes, and the start of the island's spectacular camellia bloom season — particularly vivid at Hueree Natural Park and Jeju Camellia Hill. Temperatures range from roughly 5 °C (41 °F) at night to 12 °C (54 °F) midday, and the island's legendary wind makes it feel colder than the thermometer suggests, so pack a proper windproof layer. Hallasan's summit trail frequently sees snow and may close on short notice due to ice conditions — check the Hallasan National Park website (english.hallasan.go.kr) before heading up. The week between Christmas and New Year sees a modest uptick in domestic Korean visitors, so book accommodation a few weeks ahead if your dates overlap with that window.

December daytime highs hover around 10–12 °C (50–54 °F), while nights dip to 4–6 °C (39–43 °F) — mild by Korean mainland standards but genuinely chilly once Jeju's persistent westerly winds factor in. Rain is possible throughout the month, and higher elevations around Hallasan can receive snowfall. Plan for layers, a waterproof shell, and sturdy shoes if you're spending time outdoors.

December is one of Jeju's quietest months — you'll have Seongsan Ilchulbong, the Manjanggul lava tube, and most beaches almost to yourself on weekdays. The exception is the Christmas–New Year stretch (roughly December 23–January 2), when domestic travellers book short breaks and coastal guesthouses fill up. If you're flexible, the first three weeks of December offer the best combination of solitude and availability.

Jeju's winter camellia season is a genuine highlight: the first blossoms typically open in late November and peak through January, with Hueree Natural Park (Seogwipo) and Jeju Camellia Hill offering the most photogenic displays. Hallasan's higher slopes turn snowy and dramatic when conditions allow. Tangerine orchards are also in full harvest — roadside stalls selling fresh hallabong and cheonhyehyang citrus are ubiquitous and worth stopping at.

Yes, but with caveats: both the Eorimok and Yeongsil trails that reach the crater rim at윗세오름 (1,700 m) are generally open, but the Gwaneumsa and Seongpanak summit trails to Baekrokdam crater (1,950 m) are subject to closure when ice or snow makes them dangerous. Crampons or micro-spikes are strongly recommended from mid-December onward, and entry cutoff times are strictly enforced. Always check the official Hallasan National Park website on the morning of your hike before setting out.

December is light on major festivals, which is part of its charm for visitors seeking a quieter experience. The Jeju Haenyeo (female diver) cultural sites around Sehwa and Gimnyeong remain open and give excellent context without summer crowds. Some years Jeju City hosts Christmas illuminations around the downtown area and Nohyeong Rotary; check the Jeju Tourism Organisation (visitjeju.net) closer to your travel date for any confirmed events.

Prioritise wind protection over pure warmth: a windproof and water-resistant outer layer is more useful than a heavy down coat that won't cut the island's gusts. Pack thermal base layers, a mid-fleece, waterproof walking shoes or trail runners, and a compact umbrella. If you plan to hike Hallasan, add gloves, a wool hat, and consider renting or buying microspike traction devices locally in Jeju City.

Accommodation rates in December can run 30–50% lower than summer peak prices, and many mid-range guesthouses in Seogwipo and Jeju City are negotiable for longer stays. Flights from Seoul (Gimpo–Jeju) are similarly cheaper on weekday departures in early and mid-December. The exception is the Christmas–New Year window, when prices bounce back toward peak-season levels for a week or so.