Seoul Weather in August
South Korea · 30-year monthly averages
⚠️ Challenging time to visit
August in Seoul is hot, with average daytime highs around 30°C (86°F) and nighttime lows near 23°C (73°F). Expect roughly 348mm of precipitation spread over about 12 rainy days, and heavy rainfall is common — this is peak wet season territory.
Avg high
30°C
86°F
Avg low
23°C
73°F
Rainfall
348mm
very wet
Rainy days
12
days with ≥1mm
☀️ About 156 hours of sunshine over the month (~5h/day).
🎒 What to pack
- breathable summer clothing
- sunscreen, hat and sunglasses
- refillable water bottle
- compact umbrella or rain jacket
August vs the rest of the year
FAQ
- How hot is Seoul in August?
- August in Seoul is hot, with average daytime highs around 30°C (86°F) and nighttime lows near 23°C (73°F). Expect roughly 348mm of precipitation spread over about 12 rainy days, and heavy rainfall is common — this is peak wet season territory.
- Does it rain a lot in Seoul in August?
- Seoul sees around 348mm of precipitation in August on average — very wet by global standards.
- Is August a good time to visit Seoul?
- August is a challenging month to visit Seoul weather-wise — plan around the conditions.