Ulsan Weather in August
August in Ulsan averages 30°C (86°F) during the day and 24°C (75°F) at night. It is the wettest month of the year, with 214 mm (8.4 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Ulsan in August
As part of the rainy season, Ulsan sees around 11 days of rain in August, with an average of 214 mm (8.4 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Ulsan in August
If you're visiting Ulsan in August, expect highs of 30°C (86°F) and overnight lows around 24°C (75°F). It's usually most comfortable outside during the morning and later in the day. Nights stay warm at around 24°C (75°F), so light bedding and good ventilation are worth thinking about. Bear in mind, these are average temperatures, and it can get even warmer on particular days. Make sure to choose clothing that accommodates the warmth.
Sunshine in Ulsan in August
The month experiences a moderate amount of sunlight, with 169 hours of sunshine. This provides a nice balance between sunshine and rain.August in Ulsan has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
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 Ulsan's climate page.
Ulsan Temperature in August
Min Temperature
24°C (75°F)
Max Temperature
30°C (86°F)
Chance of Rain
37%
Precipitation
214 mm (8.4 in)
Rainy days
11 days
Humidity
77%
Sunshine
169 hours
Percentage Sunshine
41%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ulsan typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows typically ranging from 21°C (70°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 Ulsan in August
Browse day-by-day weather records for Ulsan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ulsan historical weather extremes in August
Based on weather observations in Ulsan between 1976 and 2025, these are the recorded extremes during August.
- The hottest August day on record in Ulsan reached 38°C (100°F) (August 5, 2018).
- The coldest August day was on August 8, 1980, with a maximum of 20°C (68°F).
- Nighttime temperatures dropped to 13°C (55°F) on August 31, 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 →
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What to Wear in Ulsan in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Ulsan 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 Ulsan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ulsan climate overview or explore weather in South Korea.
