Ulsan, South Korea Weather
- Ulsan, South Korea Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- Temperature and possibility of rain in Ulsan over the next 12 hours
- Temperature and possibility of rain in Ulsan in the coming days
- Rainfall in Ulsan in the coming days
- Ulsan Weather Summary
- Weather averages by month
- Ulsan's weather
- Frequently asked questions
- Comments
Current conditions
Condition: Overcast
Pressure: 1,013 hPa
Feel like: 12 °C
Temperature: 12°C
Cloud: 82%
Humidity: 88%
Wind: NW - 7 km/h
Visibility: 8.84 km
30 Day Averages and Extremes
- Average high 16.57°C
- Average low 6.53°C
- Hottest day 21°C (20 October 2026)
- Coldest day -1°C (07 November 2026)
- Average humidity 72.1%
- Days with precipitation 21 days
- Highest precipitation 100 mm (23 October 2026)
Yesterday's Data
- Max: 18°C
- Min: 7°C
- Total Precipitation: 0 mm
Temperature and possibility of rain in Ulsan over the next 12 hours
Temperature and possibility of rain in Ulsan in the coming days
Rainfall in Ulsan in the coming days
Ulsan Climate Summary
Ulsan features a Humid subtropical, no dry season (Köppen classification: Cfa), with an average annual temperature of 14.66ºC (58.39ºF), which is about 1.06% higher than the national average for South Korea. Annually, the city experiences approximately 148.66 millimeters (5.85 inches) of rainfall, spread across 118.18 rainy days, accounting for 32.38% of the year.
| Longitude | 35.5383773 |
| Latitude | 129.3113596 |
| Yearly high temperature | 16.85ºC (62.33ºF) |
| Yearly low temperature | 11.18ºC (52.12ºF) |
| Hottest month | August 28.41ºC (83.14ºF) |
| Coldest month | January -1.16ºC (29.91ºF) |
| Yearly precip | 148.66mm (5.85in) |
| Days with rainfall | 118.18 days (32.38%) |
| Driest month | January (60.4%) |
| Wettest month | July (85.77%) |
Weather averages by month
| Month | High / Low (°C) | Rain |
|---|---|---|
| January | 4.66° / -1.16° | 4.36 days |
| February | 6.84° / 0.89° | 6.82 days |
| March | 11.26° / 4.87° | 9.27 days |
| April | 15.85° / 9.15° | 9.64 days |
| May | 20.55° / 13.82° | 8.91 days |
| June | 23.51° / 17.74° | 11.82 days |
| July | 26.79° / 21.85° | 18.36 days |
| August | 28.41° / 23.74° | 16.45 days |
| September | 24.37° / 19.59° | 12.82 days |
| October | 19.54° / 14.22° | 8.73 days |
| November | 13.74° / 8.21° | 6.09 days |
| December | 6.66° / 1.24° | 4.91 days |
Ulsan's weather
Frequently asked questions
1. What is the hottest month in Ulsan?
August has the highest average monthly temperature (daily mean of 28.41ºC) and January are the coolest (daily mean of -1.16ºC).
2. What should I wear in Ulsan today?
For today's mild weather in Ulsan, with temperatures between 13ºC to 16ºC (55.4ºF to 60.8ºF), consider wearing:
- Sun hat (if spending time outdoors)
- Scarf (optional)
- Light jacket (for cooler periods)
- Long-sleeve shirt or blouse
Temperature
Air quality
Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals
- CO2 486
- CO 182
- NH3 0
- NO2 61
- O3 7
- PM10 21
- PM25 16
- SO2 16
- CH4 1,454