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: Mainly Clear
Pressure: 1,006 hPa
Feel like: 31 °C
Temperature: 27°C
Cloud: 20%
Humidity: 82%
Wind: NE - 10 km/h
Visibility: 22.9 km
30 Day Averages and Extremes
- Average high 30.53°C
- Average low 23.6°C
- Hottest day 36°C (31 July 2026)
- Coldest day 21°C (14 August 2026)
- Average humidity 80.57%
- Days with precipitation 24 days
- Highest precipitation 68 mm (08 August 2026)
Yesterday's Data
- Max: 30°C
- Min: 25°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 very hot weather in Ulsan, with the high temperatures above 30ºC (86.0ºF), consider wearing:
- Sleeveless tops or vests
- UV-blocking sunglasses
- Light, natural fabrics (like cotton or linen)
- Lightweight, loose-fitting shorts
Temperature
Air quality
Satisfactory air quality, minimal pollution, low risk
- CO2 438
- CO 138
- NH3 0
- NO2 12
- O3 77
- PM10 13
- PM25 9
- SO2 5
- CH4 1,384