Seoul Weather in August
Seoul in August sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 22°C (72°F). Rainfall is fairly high this month at around 260 mm (10 in), so pack a rain jacket to stay dry.
Rainfall in Seoul in August
Based on our climate data of the past 30 years, about 13 days of rain are anticipated, with 260 mm (10 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Seoul in August
Daytime highs in Seoul in August reach 31°C (88°F), with nights around 22°C (72°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 22°C (72°F) overnight, nights are warm enough to sit outside comfortably in light clothing. Note that these temperatures are average, but some days may be hotter. Dress in cool, breathable fabrics to stay comfortable in the heat.
Sunshine in Seoul in August
The city usually sees around 154 hours of sunlight, indicating a moderately sunny period.
Wind Speed in Seoul in August
August sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.If you're looking for dry conditions and comfortable temperatures, August may not be the ideal month to visit Seoul. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Seoul's climate page.
Seoul Temperature in August
Min Temperature
22°C (72°F)
Max Temperature
31°C (88°F)
Chance of Rain
45%
Precipitation
260 mm (10 in)
Rainy days
13 days
Humidity
74%
Windspeed
2 m/s (4 knots)
Sunshine
154 hours
Percentage Sunshine
36%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Seoul typically drop from around 31°C (88°F) at the start of August to approximately 28°C (82°F) by the end. Nights are warm, with lows typically ranging from 20°C (68°F) to 24°C (75°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Seoul in August
Browse day-by-day weather records for Seoul spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Seoul historical weather extremes in August
According to our 49 years of weather records for Seoul, the following extremes were recorded between 1976 and 2025.
- Seoul recorded its highest August temperature of 39°C (102°F) on August 1, 2018.
- Seoul experienced its chilliest August day on August 25, 2005, reaching only 19°C (66°F).
- Nighttime temperatures dropped to 14°C (57°F) on August 30, 1993, marking the coldest August night on record.
Best Places in South Korea in August
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Seoul in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Seoul in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Seoul's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Seoul climate overview or explore weather in South Korea.
