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: Partly Cloudy
Pressure: 1,015 hPa
Feel like: 25 °C
Temperature: 23°C
Cloud: 52%
Humidity: 87%
Wind: NNE - 16 km/h
Visibility: 24.4 km
30 Day Averages and Extremes
- Average high 24.23°C
- Average low 17.17°C
- Hottest day 27°C (04 September 2026)
- Coldest day 10°C (30 September 2026)
- Average humidity 76.63%
- Days with precipitation 18 days
- Highest precipitation 48 mm (17 September 2026)
Yesterday's Data
- Max: 24°C
- Min: 19°C
- Total Precipitation: 1 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 warm weather in Ulsan, with temperatures between 21ºC to 24ºC (69.8ºF to 75.2ºF), you might consider wearing:
- Sunglasses
- Sun hat or cap
- Light, breathable socks
- Shorts or lightweight trousers
Temperature
Air quality
Satisfactory air quality, minimal pollution, low risk
- CO2 437
- CO 138
- NH3 0
- NO2 10
- O3 92
- PM10 18
- PM25 12
- SO2 4
- CH4 1,373