Travel Weather Fairy🎊 Featured event
Seoul autumn festival season
📅 Around September–October
Riverfront and city events can overlap with fall foliage demand, making major sights and weekend transport busier.
Check official source →🇰🇷 South Korea · Seoul
Seoul Weather in May
Late springFor Seoul, May typically brings mild daytime weather and cool nights: the 10-year average high is about 23°C (73°F), while the average low is 12°C (53°F). Some wet days are normal, with about 8 days reaching at least 1 mm of precipitation and roughly 111 mm for the month.
Avg high72.7°F 22.6°CAvg low53.3°F 11.8°CRainy days~8.4 daysMonthly rain111.2 mm
🧳 Packing guide
What to wear in Seoul in May
Packing for Seoul in May is easiest with layers: 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
Seoul: 12-month travel weather
Seoul has four distinct seasons, a summer monsoon, hot and humid July–August weather, and cold winters with occasional snow.
JanMidwinter · Cold wave riskFebWinter · Cold wave riskMarEarly springAprSpringMayLate springJunEarly summer · Rainy season beginsJulRainy season · Heat wave riskAugMidsummer · Heat wave riskSepEarly autumn · Typhoon riskOctAutumnNovLate autumnDecWinter · Cold wave risk
Monthly labels summarize typical climate patterns for trip planning. Always check the latest forecast and tropical-storm alerts before departure.
🎉 Trip planning check
Seoul 2026 events & busy periods
Check major events, holidays and periods that may affect crowds, transport or opening hours.
⚠️ Busy / closure period
Lunar New Year and Chuseok holidays
📅 Lunar-calendar dates · vary each year
Some restaurants and shops close while high-speed rail and road demand rises sharply during these major family holidays.
Check official source →Event dates, holiday schedules and opening hours can change. Recheck the linked official tourism or government source before departure.
Seoul 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 · 102.9 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
14.6°C/10.5°C
🌧️ 18.4 mm
2
17.6°C/7.3°C
No rain
3
13°C/9°C
🌧️ 10 mm
4
17.6°C/7.5°C
No rain
5
13.6°C/7.2°C
No rain
6
18.3°C/6.7°C
No rain
7
18.3°C/8.2°C
No rain
8
22.5°C/8.5°C
No rain
9
15.2°C/13.4°C
🌧️ 31.2 mm
10
14.3°C/10.9°C
🌧️ 8.7 mm
11
19.1°C/8.9°C
No rain
12
21.2°C/8.7°C
No rain
13
24.1°C/13.1°C
No rain
14
25.7°C/12.3°C
No rain
15
22.7°C/15.7°C
🌧️ 3.6 mm
16
23°C/15.8°C
🌧️ 18.5 mm
17
23.2°C/14.2°C
🌧️ 4 mm
18
19.5°C/9.8°C
No rain
19
19.6°C/9.9°C
No rain
20
25.5°C/16.3°C
No rain
21
29.5°C/19.1°C
No rain
22
26.8°C/18.4°C
No rain
23
23.9°C/14.7°C
🌧️ 2.3 mm
24
17.5°C/13.6°C
No rain
25
21.1°C/10.7°C
No rain
26
25.9°C/12.2°C
No rain
27
27°C/13.5°C
No rain
28
26.4°C/14.3°C
🌧️ 2.6 mm
29
26.5°C/14.6°C
No rain
30
28.5°C/16.4°C
No rain
31
28.8°C/16.6°C
No rain
May 2024☔ 8 days · 127.1 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
22°C/12.3°C
No rain
2
22.9°C/9.5°C
No rain
3
27.8°C/9.7°C
No rain
4
27.1°C/12°C
No rain
5
18.9°C/14.8°C
🌧️ 66.8 mm
6
14.6°C/12.9°C
🌧️ 6.2 mm
7
15.2°C/11.7°C
🌧️ 1.9 mm
8
19.5°C/7.5°C
No rain
9
19.5°C/8.1°C
No rain
10
21.7°C/8.8°C
No rain
11
21.6°C/11.5°C
🌧️ 16.2 mm
12
21.2°C/10.2°C
No rain
13
22.4°C/10.2°C
No rain
14
21.9°C/9.7°C
No rain
15
18.1°C/6.6°C
🌧️ 22.7 mm
16
18.1°C/6°C
🌧️ 3.4 mm
17
22.1°C/7°C
No rain
18
24°C/11.3°C
No rain
19
25.3°C/11.8°C
No rain
20
20.9°C/14.2°C
🌧️ 2.1 mm
21
25.5°C/13.8°C
No rain
22
23.2°C/14°C
No rain
23
24°C/13.3°C
No rain
24
24.8°C/14°C
No rain
25
24.8°C/17.7°C
No rain
26
22.5°C/15.3°C
🌧️ 7.1 mm
27
22.9°C/12.6°C
No rain
28
23.8°C/11.7°C
No rain
29
25.5°C/12.9°C
No rain
30
23.1°C/14°C
No rain
31
23.4°C/13.5°C
No rain
May 2023☔ 7 days · 166.8 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
18.4°C/7°C
No rain
2
23°C/6.7°C
No rain
3
24.1°C/9.2°C
No rain
4
26.3°C/12.2°C
No rain
5
20.7°C/15.2°C
🌧️ 59 mm
6
13.3°C/11°C
🌧️ 36.9 mm
7
16.3°C/8.6°C
No rain
8
19.4°C/5.5°C
No rain
9
19.2°C/6.7°C
No rain
10
22.6°C/7.2°C
No rain
11
24.3°C/9.1°C
No rain
12
21.6°C/9.6°C
No rain
13
21.7°C/9°C
No rain
14
21°C/10.5°C
No rain
15
25.9°C/10.3°C
No rain
16
27.9°C/14°C
No rain
17
26.7°C/13.7°C
No rain
18
25.3°C/15°C
No rain
19
24.9°C/15.6°C
No rain
20
25.1°C/14.7°C
No rain
21
20.2°C/14.4°C
🌧️ 1.1 mm
22
24.6°C/13.7°C
No rain
23
24.9°C/12.9°C
No rain
24
25.3°C/12.9°C
No rain
25
24.9°C/12.6°C
No rain
26
25.8°C/14.7°C
No rain
27
19.8°C/16°C
🌧️ 24.6 mm
28
19.7°C/17.7°C
🌧️ 37.4 mm
29
26.7°C/18°C
🌧️ 5.9 mm
30
26°C/17.9°C
🌧️ 1.6 mm
31
25°C/17°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.
✈️ Traveling soon?
Current Seoul weather and 7-day forecast
When departure is close, the latest forecast matters more than long-term averages.
Loading current weather…
Loading 7-day forecast…
Forecast data: MET Norway · CC BY 4.0 · cached by Travel Weather Fairy
💱 Quick currency check
Local currency to U.S. dollars
Loading exchange rate…
💱 Loading exchange rate…
Seoul weather in other months
Switch months to compare the seasonal pattern.