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Spring canola and flower season
📅 Around March–April
Flower spots, oreum trails and the east coast attract more visitors, and rental-car traffic can become heavier.
Check official source →🇰🇷 South Korea · Jeju
Jeju Weather in January
Winter · WindyWeather in Jeju during January is typically cold in the daytime and cold after sunset, based on 2016–2025 averages of 8°C (46°F) / 3°C (37°F). The 10-year average shows around 14 rainy days and about 102 mm of monthly precipitation, so rain is fairly common.
Avg high45.8°F 7.7°CAvg low37.4°F 3.0°CRainy days~14.3 daysMonthly rain101.7 mm
🧳 Packing guide
What to wear in Jeju in January
For what to wear in Jeju in January, warm layers and a proper jacket or coat are useful, especially after sunset. Add a compact umbrella or light rain jacket because wet weather is common enough to affect sightseeing.
Travel takeaway: The month suits cold-weather travelers best, especially if you plan around shorter outdoor sessions and warmer layers.
🗓️ Travel timing at a glance
Jeju: 12-month travel weather
Jeju combines four seasons with a windy maritime climate. Summer monsoon rain and late-summer typhoons can affect flights, ferries and outdoor plans.
JanWinter · WindyFebWinter · WindyMarEarly spring · WindyAprSpringMayLate spring · WindyJunRainy seasonJulRainy season · HeatAugMidsummer · Typhoon riskSepLate summer · Typhoon riskOctAutumn · WindyNovLate autumn · WindyDecWinter · Windy
Monthly labels summarize typical climate patterns for trip planning. Always check the latest forecast and tropical-storm alerts before departure.
🎉 Trip planning check
Jeju 2026 events & busy periods
Check major events, holidays and periods that may affect crowds, transport or opening hours.
⚠️ Busy / closure period
Summer peak and typhoon season
📅 July–September
Peak-season demand can overlap with typhoon disruption, so check cancellation terms for flights, rental cars and marine activities.
Check official source →Event dates, holiday schedules and opening hours can change. Recheck the linked official tourism or government source before departure.
Jeju in January · recent 3 years
Compare the most recent complete year with the two years before it. Daily high / low temperatures are shown in °F.
CalendarNo measurable rain🌧️ Rain⛈️ Thunderstorm❄️ SnowHigh / Low · °F
⭐ January 2025 · latest complete year☔ 15 days · 77.9 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
9.2°C/2.5°C
No rain
2
10°C/5°C
No rain
3
6.4°C/3.9°C
No rain
4
7.7°C/2.7°C
No rain
5
10.2°C/5°C
🌧️ 3.2 mm
6
9.7°C/4.2°C
🌧️ 3.1 mm
7
6.3°C/3°C
🌧️ 6 mm
8
7.9°C/3.9°C
🌧️ 3.9 mm
9
4°C/-0.2°C
🌧️ 9.7 mm
10
3.1°C/-0.9°C
🌧️ 5 mm
11
3.5°C/1.8°C
🌧️ 5.1 mm
12
4.8°C/2.4°C
🌧️ 4.6 mm
13
7.2°C/3.3°C
No rain
14
12.6°C/3.2°C
No rain
15
7.3°C/2.4°C
🌧️ 5.8 mm
16
6.8°C/2.9°C
No rain
17
6.4°C/2.1°C
No rain
18
9°C/2.1°C
No rain
19
10.7°C/3.6°C
No rain
20
9.5°C/5.8°C
No rain
21
8.8°C/3.7°C
No rain
22
11.1°C/4.6°C
No rain
23
11.3°C/5.2°C
No rain
24
12.8°C/6.1°C
No rain
25
10.1°C/8.2°C
🌧️ 1 mm
26
8.6°C/6.7°C
🌧️ 2.3 mm
27
6.6°C/2.4°C
🌧️ 16.6 mm
28
3°C/1.5°C
🌧️ 6.5 mm
29
3.1°C/1.6°C
🌧️ 1.9 mm
30
7.1°C/-0.9°C
No rain
31
11.5°C/2.3°C
🌧️ 3.1 mm
January 2024☔ 21 days · 159.7 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
10°C/6.1°C
🌧️ 1.1 mm
2
11.5°C/8.2°C
🌧️ 1.7 mm
3
8.9°C/6.8°C
🌧️ 11.5 mm
4
10.1°C/3.2°C
No rain
5
13.6°C/4.5°C
No rain
6
10°C/5.3°C
🌧️ 1.5 mm
7
6.9°C/3.7°C
🌧️ 1.3 mm
8
5.8°C/0.9°C
No rain
9
12.3°C/3.7°C
🌧️ 2.1 mm
10
9.1°C/3.8°C
🌧️ 10.2 mm
11
8.6°C/3.5°C
No rain
12
12.2°C/5.3°C
No rain
13
8.5°C/2.8°C
No rain
14
15.7°C/4.3°C
🌧️ 1.4 mm
15
7.8°C/1.7°C
🌧️ 1.4 mm
16
9.4°C/0.6°C
No rain
17
15.4°C/6.5°C
No rain
18
14.9°C/9.2°C
🌧️ 10.7 mm
19
12.3°C/10.8°C
🌧️ 19 mm
20
12.7°C/10°C
🌧️ 30.5 mm
21
9.5°C/6.2°C
🌧️ 18.6 mm
22
5.7°C/-0.8°C
🌧️ 17.8 mm
23
0.7°C/-1.1°C
🌧️ 5.4 mm
24
3.2°C/0.4°C
🌧️ 5.1 mm
25
4.4°C/1.7°C
🌧️ 3.3 mm
26
6°C/4°C
🌧️ 1.6 mm
27
7.3°C/4°C
No rain
28
6.7°C/3.5°C
🌧️ 5.3 mm
29
7.8°C/2.1°C
No rain
30
10°C/1.8°C
🌧️ 3.3 mm
31
14°C/8.8°C
🌧️ 6.7 mm
January 2023☔ 16 days · 150.6 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
9°C/3.9°C
No rain
2
4.7°C/1.8°C
No rain
3
5.9°C/2.9°C
No rain
4
6.3°C/2.8°C
No rain
5
10.6°C/2.8°C
No rain
6
10.7°C/2°C
🌧️ 1.6 mm
7
8.1°C/5.1°C
No rain
8
12.1°C/2.6°C
No rain
9
14.2°C/3.6°C
🌧️ 1 mm
10
12.4°C/0.7°C
No rain
11
13.1°C/4.7°C
No rain
12
16.5°C/6.3°C
🌧️ 11.2 mm
13
18.4°C/13.3°C
🌧️ 57 mm
14
13.9°C/8.2°C
🌧️ 9.2 mm
15
8°C/1.9°C
🌧️ 17.7 mm
16
2.7°C/0.9°C
🌧️ 2.9 mm
17
3.5°C/1.8°C
🌧️ 2.5 mm
18
5°C/2.8°C
🌧️ 4.6 mm
19
6.4°C/3.5°C
No rain
20
7.2°C/0.8°C
🌧️ 1.7 mm
21
3.5°C/-0.1°C
No rain
22
8.1°C/0.8°C
🌧️ 7.1 mm
23
8.3°C/4°C
🌧️ 4.6 mm
24
2.9°C/-4.3°C
🌧️ 7.5 mm
25
-0.2°C/-5.5°C
🌧️ 3.2 mm
26
7.2°C/0°C
No rain
27
3.7°C/-0.3°C
🌧️ 11.8 mm
28
3.4°C/-0.7°C
🌧️ 5.3 mm
29
7.1°C/3.1°C
No rain
30
6.9°C/0.9°C
No rain
31
11.2°C/-0.8°C
No rain
Historical calendars use Open-Meteo reanalysis data. A rainy day is counted when daily precipitation is at least 1 mm. Conditions at a specific hotel, beach or station can differ.
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Current Jeju weather and 7-day forecast
When departure is close, the latest forecast matters more than long-term averages.
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Forecast data: MET Norway · CC BY 4.0 · cached by Travel Weather Fairy
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Jeju weather in other months
Switch months to compare the seasonal pattern.