Ulsan
Nam-gu, South Korea
Current Weather
10°50°
Partly Cloudy
Feels Like: 11°52°
Min: 10°49°
Max: 21°69°
The next few hours will be partly cloudy, with today reaching 21°C and dropping to 15°C. The coming days will be mostly clear
Hourly Forecast
Want a closer look at the weather?
Premium adds minute-by-minute rain timing, yesterday comparisons, and more detail across Airpult.
Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Daylight Hours
06:42
Sunrise
17:30
Sunset
Moon
15:49
Moonrise
04:14
Moonset
Daily Forecast
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Resources
UV Index
Humidity
Looking at the night sky?
See moon phases, eclipses, and seasons for this year.
View astronomyCurrent stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Ulsan.
View stargazing scoreWeather in Ulsan today, October 23, 2026
Ulsan looks damp on October 23, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Expect a grey start, with morning cloud around 79% by 11:00. Outdoor plans early on should not rely on bright skies.Ulsan looks damp on October 23, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Expect a grey start, with morning cloud around 79% by 11:00. Outdoor plans early on should not rely on bright skies.
The temperature range runs from about 10°C up to 21°C. The air stays humid, with relative humidity between 64% and 99% and the peak around 21:00. Expect gentle winds, highest near 12:00 at 17 km/h.The temperature range runs from about 49°F up to 69°F. The air stays humid, with relative humidity between 64% and 99% and the peak around 21:00. Expect gentle winds, highest near 12:00 at 11 mph.
The second half of the day still looks unsettled, with rain probability around 98% by 22:00. Dense cloud near 100% at 15:00 keeps the feel grey. Horizontal visibility holds close to 16.1 km. Expect sunrise at 06:42, sunset at 17:30, and 10 hours 47 minutes of sunlight today overall.The second half of the day still looks unsettled, with rain probability around 98% by 22:00. Dense cloud near 100% at 15:00 keeps the feel grey. Horizontal visibility holds close to 10 mi. Expect sunrise at 06:42, sunset at 17:30, and 10 hours 47 minutes of sunlight today overall.
Overall, Ulsan on October 23, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 98% and the high sits around 21°C.Overall, Ulsan on October 23, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 98% and the high sits around 69°F.
Frequently asked questions about weather in Ulsan
How warm does it get in Ulsan?
The warmest month in Ulsan is August, with average high temperatures of 30°C. The average temperature during this period is around 27°C.The warmest month in Ulsan is August, with average high temperatures of 86°F. The average temperature during this period is around 81°F.
How cold does it get in Ulsan?
The coldest month in Ulsan is January, with average low temperatures of -1°C. The average temperature during this period is around 3°C.The coldest month in Ulsan is January, with average low temperatures of 29°F. The average temperature during this period is around 37°F.
What is the wettest time of year in Ulsan?
The wettest month in Ulsan is September, with an average of 234 mm of precipitation.The wettest month in Ulsan is September, with an average of 9.2 in of precipitation.
What is the driest time of year in Ulsan?
The driest month in Ulsan is December, with an average of 28 mm of precipitation.The driest month in Ulsan is December, with an average of 1.1 in of precipitation.