Ulsan weather
Today's sky, the hour-by-hour rain chance and the 16-day forecast for Ulsan, South Korea. Like most weather services, we show Ulsan at one spot: Ulsan, its largest city. At 8:30 AM local time it was partly cloudy and 10°C (50°F). Mostly light, on-and-off rain; heavier around 9 PM, 10 PM, 11 PM, 12 AM (16.4 mm total). Best months for weather: May, Oct.
Current conditions
- Clouds
- 68%
- Chance of rain
- 3%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 9 PM, 10 PM, 11 PM, 12 AM (16.4 mm total)
Daily Forecast
Best Time to Visit
Peak season May, OctOff season Jul, Dec–Mar
About Ulsan weather
Is it raining in Ulsan right now?
No. It’s partly cloudy and 10° right now. Mostly light, on-and-off rain; heavier around 9 PM, 10 PM, 11 PM, 12 AM (16.4 mm total).
What’s the weather like in Ulsan this week?
Over the next 7 days, expect highs of 11–20° and lows of -1–9°. Rain is likely on 3 of 7 days (Sunday, Monday, Thursday). The driest day looks like Tuesday.
Has it been raining in Ulsan lately?
In the past 7 days, Ulsan had 2 rainy days and 62.2 mm of rain in total.
What should I pack for Ulsan?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Ulsan weather by month
When is the best time to visit Ulsan?
Based on weather alone, the best time to visit Ulsan is May, Oct, according to NASA's 2001–2025 climate averages. Jul, Dec–Mar tends to be the least pleasant. Average highs run from 6°C (42°F) in January to 28°C (82°F) in August.
What is the rainiest month in Ulsan?
July is the wettest month, with about 240 mm (9.4 in) of rain on average. December is the driest, with about 42 mm (1.7 in).
What is the hottest month in Ulsan?
August is the warmest, with average highs of 28°C (82°F) and lows of 24°C (75°F). January is the coolest, with highs of 6°C (42°F) and lows of 0°C (32°F).
Does Ulsan have a rainy season?
Yes. Jun–Sep is the rainy season (150 mm or more a month), while Nov–Feb is usually dry (under 60 mm).
Ulsan weather month by month
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis for Ulsan), forecast and current conditions from Open-Meteo. Page updated . How we rate months