Live Weather & Forecast
Weather in Ulsan
South Korea · Real-time conditions & 3-day outlook
16°C
Feels like 16°C
61°F / Feels 61°F
Partly Cloudy
Ulsan, South Korea
🌞 Daytime
Updated: 2026-04-15 10:30
Humidity
55%
Wind
5 km/h N
Wind Gust
6 km/h
Pressure
1012 mb
Visibility
10 km
UV Index
4.5
(Moderate)
Precipitation
0 mm
Cloud Cover
27%
Dew Point
7.2°C
Wind Degree
10°
Air Quality Index
US EPA: Moderate
UK DEFRA: Low (2)
CO
514.9 μg/m³
NO₂
27.7 μg/m³
O₃
75 μg/m³
SO₂
16.9 μg/m³
PM 2.5
17.9 μg/m³
PM 10
26.9 μg/m³
Today's Hourly Forecast
24-hour breakdown for Ulsan, South Korea
12 AM
14°
Partly Cloudy
1 AM
13°
Partly Cloudy
2 AM
13°
Overcast
3 AM
13°
Overcast
4 AM
13°
Cloudy
5 AM
13°
Cloudy
6 AM
13°
Overcast
7 AM
13°
Cloudy
8 AM
13°
Partly Cloudy
9 AM
14°
Partly Cloudy
10 AM
16°
Partly Cloudy
11 AM
18°
Sunny
12 PM
19°
Sunny
1 PM
20°
Sunny
2 PM
20°
Sunny
3 PM
20°
Sunny
4 PM
19°
Sunny
5 PM
19°
Sunny
6 PM
17°
Sunny
7 PM
16°
Clear
8 PM
15°
Clear
9 PM
14°
Clear
10 PM
14°
Clear
11 PM
14°
Clear
3-Day Forecast
Daily overview for Ulsan, South Korea
Today
Partly Cloudy
20°
/
13°
🌧️ 0% chance of rain
💧 Avg. humidity: 64%
💨 Max wind: 9.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 05:54 AM
🌇 Sunset: 06:58 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Sunny
18°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 61%
💨 Max wind: 22 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.1
🌅 Sunrise: 05:53 AM
🌇 Sunset: 06:58 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Moderate rain
12°
/
11°
🌧️ 80% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 12.2 km/h
🌧️ Total precip: 12.59 mm
☀️ UV Index: 0.5
🌅 Sunrise: 05:51 AM
🌇 Sunset: 06:59 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Ulsan
Plan your trip around the most favorable weather conditions in Ulsan, South Korea.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Ulsan?
Current conditions in Ulsan: Partly Cloudy, temperature 16°C, humidity 55%.
What is the best time to visit Ulsan?
The best time to visit Ulsan is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Ulsan?
Ulsan shares the climate of South Korea. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Ulsan?
Rainfall patterns in Ulsan vary by season. Peak rainfall typically occurs outside of the dry season.
What should I pack for Ulsan?
For visits during June – September: light clothing and sun protection. For the November – March period: layers and a waterproof jacket are recommended for Ulsan.
What country is Ulsan in?
Ulsan is a state/province of South Korea.
What are the public holidays in Ulsan in 2026?
View the full list of 2026 public holidays for Ulsan on our Holidays page.
What are the coordinates for the weather forecast in Ulsan?
The weather forecast for Ulsan is based on coordinates 35.0154, 128.7059.