Travel Weather Fairy🎊 Featured event
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 May
Late spring · WindyWeather in Jeju during May is typically mild in the daytime and mild after sunset, based on 2016–2025 averages of 22°C (71°F) / 15°C (59°F). The 10-year average shows around 11 rainy days and about 149 mm of monthly precipitation, so some wet days are normal.
Avg high70.8°F 21.6°CAvg low59.4°F 15.2°CRainy days~11.1 daysMonthly rain149.1 mm
🧳 Packing guide
What to wear in Jeju in May
For what to wear in Jeju in May, long sleeves or a T-shirt with a light jacket make a practical combination. A compact umbrella is worth carrying for passing showers or wetter days.
Travel takeaway: For many travelers, these temperatures are comfortable for city sightseeing when you pack one flexible layer.
🗓️ 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 May · 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
⭐ May 2025 · latest complete year☔ 9 days · 179.3 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
20.9°C/13.7°C
🌧️ 10.9 mm
2
17.3°C/11°C
No rain
3
22.2°C/10°C
No rain
4
17.4°C/9°C
No rain
5
18.5°C/12.2°C
🌧️ 16.1 mm
6
16.7°C/11.2°C
🌧️ 4.6 mm
7
16.8°C/10.2°C
No rain
8
21.8°C/11.7°C
No rain
9
21.1°C/15.4°C
🌧️ 80.5 mm
10
16.7°C/13.5°C
🌧️ 1.2 mm
11
18.2°C/13.4°C
No rain
12
21.5°C/14.3°C
No rain
13
22.4°C/14.4°C
No rain
14
23.7°C/13.3°C
No rain
15
22.8°C/19.4°C
No rain
16
21.9°C/20°C
🌧️ 32.4 mm
17
22.9°C/17.2°C
No rain
18
18.4°C/14.1°C
No rain
19
24.2°C/14.9°C
No rain
20
24.9°C/19.3°C
No rain
21
23.3°C/18.9°C
🌧️ 16.1 mm
22
22.9°C/19°C
No rain
23
19.7°C/17°C
🌧️ 9.3 mm
24
17°C/14.3°C
🌧️ 4.4 mm
25
19.6°C/14.5°C
No rain
26
22°C/15.2°C
No rain
27
21.8°C/16.8°C
No rain
28
22.6°C/17.3°C
No rain
29
22.5°C/17.9°C
No rain
30
21.3°C/15.5°C
No rain
31
21.7°C/15.5°C
No rain
May 2024☔ 11 days · 142.6 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
16.4°C/13.1°C
🌧️ 1.3 mm
2
17.6°C/13.4°C
No rain
3
19.7°C/12.8°C
No rain
4
23.2°C/12.8°C
🌧️ 1.9 mm
5
22.6°C/19.8°C
🌧️ 101.6 mm
6
20°C/15.9°C
🌧️ 1.9 mm
7
19.2°C/14.6°C
No rain
8
15.3°C/13.5°C
🌧️ 8.6 mm
9
18°C/12.4°C
No rain
10
19.9°C/13.9°C
No rain
11
23.8°C/14°C
🌧️ 5.8 mm
12
19.6°C/13.9°C
🌧️ 1.3 mm
13
19.1°C/12.3°C
No rain
14
20.1°C/15.3°C
No rain
15
20.9°C/12.6°C
🌧️ 3.7 mm
16
20°C/14.3°C
No rain
17
24.9°C/15.8°C
No rain
18
22.6°C/14.3°C
No rain
19
23.6°C/14.9°C
No rain
20
23.3°C/16°C
No rain
21
23.7°C/17.3°C
No rain
22
24.2°C/17.4°C
No rain
23
22.3°C/17.9°C
No rain
24
23.4°C/17.9°C
No rain
25
25.1°C/17.6°C
No rain
26
26.1°C/17.4°C
🌧️ 4.3 mm
27
23°C/17.8°C
🌧️ 6.4 mm
28
20.5°C/15.4°C
No rain
29
23.7°C/15.1°C
No rain
30
22.8°C/15.9°C
No rain
31
20.3°C/17.6°C
🌧️ 4.8 mm
May 2023☔ 16 days · 368.4 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
18.9°C/13.1°C
No rain
2
23.5°C/12.9°C
No rain
3
21.1°C/13.5°C
🌧️ 20.5 mm
4
21.3°C/17.2°C
🌧️ 112.1 mm
5
22.3°C/20.9°C
🌧️ 56.4 mm
6
23.7°C/16.3°C
🌧️ 3.1 mm
7
16.7°C/12.4°C
🌧️ 20.2 mm
8
16.9°C/11.7°C
No rain
9
18.3°C/11.1°C
No rain
10
20.2°C/13.3°C
No rain
11
21.6°C/14.9°C
No rain
12
18.7°C/13.2°C
🌧️ 3.6 mm
13
16.4°C/13.7°C
🌧️ 9 mm
14
20°C/12.8°C
🌧️ 1.5 mm
15
24.6°C/14°C
No rain
16
26.6°C/19.1°C
No rain
17
26.6°C/19°C
No rain
18
20.3°C/16.7°C
🌧️ 66.9 mm
19
20.7°C/16.1°C
🌧️ 7.9 mm
20
21.7°C/15.1°C
No rain
21
20.5°C/14.3°C
No rain
22
18.6°C/14.1°C
No rain
23
20.1°C/12°C
No rain
24
20.4°C/13.9°C
🌧️ 3.5 mm
25
23.4°C/16.2°C
No rain
26
26.2°C/15.1°C
🌧️ 1.5 mm
27
24.1°C/19.1°C
No rain
28
25.5°C/20.4°C
🌧️ 1.3 mm
29
27.6°C/22.5°C
🌧️ 1.1 mm
30
23.1°C/19.1°C
🌧️ 48.5 mm
31
22.8°C/18.3°C
🌧️ 9.3 mm
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.