What is the air quality in Ulsan today?

The current Air Quality Index (AQI) in Ulsan is 29 (Good). PM2.5 concentration is 6.87 µg/m³.

What is the temperature in Ulsan right now?

The current temperature in Ulsan is 20.8°C (feels like 20.8°C). Humidity is 77.5% and wind speed is 13.4 km/h.

Is it safe to go outside in Ulsan?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Ulsan, South Korea

Drizzle

20.8°C · 77.5% humidity

20.8°

Feels 20.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

22 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 31 stn

View full history →

Ulsan's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions.

77.5%

Humidity

13.4 km/h

Wind ESE

1015.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.87 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Ulsan?

Temperature & Precipitation

PM2.5 Trend

45h · 31 stations

PM2.56.87 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (22 stations within 25 km)

6.87

Median

8.97

Average

4.1

Low

18.8

High

PM2.5 µg/m³ · Model: 6.5 · Bias: -0.4

What is the 7-day forecast for Ulsan?

10-21

20.8° 12.3°

4.0 mm

10-22

21.8° 12.2°

0.44 mm

10-23

17.6° 9.6°

10-24

17.4° 14.7°

6.38 mm

10-25

16.8° 7.4°

10-26

18.6° 8.4°

10-27

18.1° 9.8°

Both models agree Avg diff: 3.9°C

Where are air quality stations near Ulsan?

Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)

1.3 km PM2.5: 8.2 µg/m³

Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)

1.3 km PM2.5: 4.1 µg/m³

Samsan-dong, Nam-gu, Ulsan, South Korea (삼산동 울산)

1.6 km PM2.5: 8.6 µg/m³

Samsan-dong, Nam-gu, Ulsan, South Korea (삼산동 울산)

1.6 km PM2.5: 7.2 µg/m³

Samsan-dong, Nam-gu, Ulsan, South Korea (삼산동 울산)

1.6 km PM2.5: 6.0 µg/m³

Seongnam-dong, Jung-gu, Ulsan, South Korea (성남동 울산)

2.1 km PM2.5: 9.1 µg/m³

Seongnam-dong, Jung-gu, Ulsan, South Korea (성남동 울산)

2.1 km PM2.5: 6.0 µg/m³

Seongnam-dong, Jung-gu, Ulsan, South Korea (성남동 울산)

2.1 km PM2.5: 6.0 µg/m³

Bukbusunhwando-ro, Ulsan, South Korea (북부순환도로 울산)

4.0 km PM2.5: 7.2 µg/m³

Bukbusunhwando-ro, Ulsan, South Korea (북부순환도로 울산)

4.0 km PM2.5: 6.0 µg/m³

What cities are near Ulsan?

35 Ungsang 28 Yangsan 20 Gijang 50 Gyeongju 34 Miryang 45 Kimhae 60 Yeonil 60 Pohang 30 Busan 57 Eisen

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T03:08 UTC.