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 August
Midsummer · Heat wave riskAugust in Seoul is usually hot by day and mild to warm at night, with 2016–2025 average highs around 29°C (85°F) and lows near 23°C (73°F). The 10-year average shows around 16 rainy days and about 276 mm of monthly precipitation, so rain is a major part of trip planning.
Avg high84.9°F 29.4°CAvg low72.8°F 22.7°CRainy days~16.2 daysMonthly rain276.0 mm
🧳 Packing guide
What to wear in Seoul in August
For what to wear in Seoul in August, light, breathable clothes work best, with sun protection for long outdoor days. Add a compact umbrella or light rain jacket because wet weather is common enough to affect sightseeing.
Travel takeaway: The month can work well for a trip if you are comfortable building indoor alternatives around wetter periods.
🗓️ 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 August · 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
⭐ August 2025 · latest complete year☔ 16 days · 204.7 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
36.4°C/27.1°C
No rain
2
36.3°C/26.9°C
No rain
3
33.3°C/25.5°C
No rain
4
32.3°C/22.2°C
🌧️ 4.5 mm
5
30.7°C/23.8°C
No rain
6
28.9°C/24.6°C
🌧️ 13 mm
7
30°C/22.7°C
No rain
8
29.6°C/21.7°C
No rain
9
26.3°C/22.7°C
🌧️ 5.2 mm
10
30.4°C/20.9°C
No rain
11
28.2°C/23.4°C
No rain
12
32°C/21.8°C
No rain
13
27.2°C/22.9°C
🌧️ 51.9 mm
14
27.4°C/23.2°C
🌧️ 36.3 mm
15
30.1°C/23.6°C
🌧️ 1.3 mm
16
30.7°C/24.5°C
No rain
17
30.2°C/23.8°C
🌧️ 1.1 mm
18
30.7°C/24.6°C
🌧️ 1.1 mm
19
30.4°C/25.4°C
🌧️ 1.9 mm
20
30.9°C/24.5°C
🌧️ 3.5 mm
21
32°C/25.5°C
No rain
22
32.1°C/24.8°C
No rain
23
33.4°C/25.1°C
No rain
24
35.2°C/25.8°C
No rain
25
33°C/24.8°C
🌧️ 19 mm
26
29.5°C/23.6°C
🌧️ 13.9 mm
27
30.4°C/22.2°C
No rain
28
30.1°C/23.9°C
🌧️ 1.4 mm
29
30.6°C/23.8°C
🌧️ 31.5 mm
30
31°C/23.6°C
🌧️ 7.7 mm
31
29.8°C/24.1°C
🌧️ 7.1 mm
August 2024☔ 16 days · 181.6 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
31.9°C/25°C
🌧️ 1 mm
2
30.1°C/25.3°C
🌧️ 11.1 mm
3
31.9°C/24.3°C
🌧️ 5.6 mm
4
33.4°C/24.1°C
No rain
5
31.5°C/25.7°C
🌧️ 15.7 mm
6
31°C/24.9°C
🌧️ 3.2 mm
7
30.9°C/24.4°C
🌧️ 2.2 mm
8
29.4°C/23.2°C
🌧️ 6.5 mm
9
31.9°C/24.2°C
No rain
10
32.1°C/24.2°C
No rain
11
32.7°C/25°C
No rain
12
32.3°C/25.9°C
No rain
13
33.6°C/25.4°C
No rain
14
32.7°C/25.3°C
No rain
15
32.3°C/25.6°C
🌧️ 8.4 mm
16
31.8°C/24.9°C
No rain
17
32.4°C/25.3°C
🌧️ 2.1 mm
18
32.3°C/24.2°C
🌧️ 21.2 mm
19
32.6°C/24.8°C
🌧️ 6.9 mm
20
34°C/25.6°C
🌧️ 10.1 mm
21
28.7°C/25.3°C
🌧️ 71.5 mm
22
30.9°C/25°C
🌧️ 5.9 mm
23
29.5°C/24.2°C
🌧️ 4.3 mm
24
29.5°C/22.5°C
No rain
25
30.6°C/24.2°C
No rain
26
29.3°C/23.4°C
No rain
27
26.6°C/22.1°C
🌧️ 2 mm
28
31.4°C/20.9°C
No rain
29
30.8°C/20.9°C
No rain
30
31.2°C/21.2°C
No rain
31
29.9°C/19.4°C
No rain
August 2023☔ 18 days · 311 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
32.5°C/23.9°C
No rain
2
31°C/24.1°C
No rain
3
31°C/22.4°C
No rain
4
32.1°C/23.5°C
No rain
5
33.6°C/23.4°C
No rain
6
31.9°C/24.6°C
🌧️ 11 mm
7
32.7°C/24.4°C
🌧️ 3.5 mm
8
33.7°C/23.2°C
🌧️ 3.1 mm
9
31.4°C/24°C
🌧️ 2.5 mm
10
24°C/20.5°C
🌧️ 74.6 mm
11
24.5°C/20.7°C
🌧️ 30.4 mm
12
26.2°C/22.2°C
🌧️ 10.2 mm
13
29.9°C/22°C
No rain
14
31.3°C/23.2°C
No rain
15
30.7°C/23.3°C
No rain
16
29.4°C/22.2°C
🌧️ 1 mm
17
30.6°C/22.5°C
No rain
18
30.6°C/23.4°C
🌧️ 1.3 mm
19
31.4°C/23.6°C
No rain
20
30.3°C/22.6°C
No rain
21
31.6°C/23.8°C
🌧️ 4.7 mm
22
29.2°C/23.8°C
🌧️ 24.1 mm
23
25.1°C/23.2°C
🌧️ 62.5 mm
24
27.8°C/22°C
🌧️ 14 mm
25
27.7°C/22.2°C
🌧️ 1.3 mm
26
28.5°C/21.2°C
No rain
27
27.2°C/20.8°C
🌧️ 1.5 mm
28
24.8°C/20.9°C
🌧️ 27.8 mm
29
25.1°C/21.4°C
🌧️ 33.3 mm
30
24.8°C/20.4°C
🌧️ 3 mm
31
27.2°C/19.5°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.
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Forecast data: MET Norway · CC BY 4.0 · cached by Travel Weather Fairy
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Seoul weather in other months
Switch months to compare the seasonal pattern.