Jeju weather in December
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Jeju December weather at a glance
In December, Jeju averages 8.2°C, with typical highs of 10.8°C and lows of 5.5°C. The historical average is 12 wet days and 70% humidity.
Jeju December temperature & humidity
Jeju December rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Jeju in December
A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings. Showers are possible, so a compact umbrella is useful.
- DaytimeWarm coat and layered tops · average high 10.8°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 5.5°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Jeju December sunrise & sunset times
2026 December · Local time (Asia/Seoul)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-12-01 | 07:20 | 17:26 | 10h 6m |
| 2026-12-15 | 07:30 | 17:27 | 9h 57m |
| 2026-12-31 | 07:38 | 17:36 | 9h 58m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Best months to visit Jeju
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
December weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Jeju weather like in December?
In December, Jeju averages 8.2°C, with typical highs of 10.8°C and lows of 5.5°C. The historical average is 12 wet days and 70% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Jeju in December?
There are about 12 wet days in December. A compact umbrella is still useful.
What should I wear in Jeju in December?
A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings. Showers are possible, so a compact umbrella is useful.
What are the best months to visit Jeju?
Recent weather data rates May among the more comfortable months.
Where can I check Jeju weather in December in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Jeju in December?
On 2026-12-15, calculated sunrise is 07:30 and sunset is 17:27 in local time (Asia/Seoul). Times vary by date and terrain.
Jeju weather by month
More South Korea destinations in December
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations