What is the air quality in Ulsan today?

The current Air Quality Index (AQI) in Ulsan is 30 (Good). PM2.5 concentration is 7.25 µg/m³.

What is the temperature in Ulsan right now?

The current temperature in Ulsan is 22.7°C (feels like 22.7°C). Humidity is 91.8% and wind speed is 25.1 km/h.

Is it safe to go outside in Ulsan?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 1.4 (Low).

Air Quality in Ulsan, South Korea

Overcast

22.7°C · 91.8% humidity

22.7°

Feels 22.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

20 stations

Nearby Monitoring Stations

AQI Forecast

27 5am

30 8am

27 11am

26 2pm

25 5pm

25 8pm

25 11pm

25 2am

Station readings 45h ago

AQI 34

PM2.5 8.2 µg/m³ · 45h ago

CAMS model

Air Quality Index Trend

46h · 50 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.

91.8%

Humidity

25.1 km/h

Wind NNW

1006.1 hPa

Pressure

1.4

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.25 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Ulsan?

Temperature & Precipitation

PM2.5 Trend

46h · 50 stations

PM2.57.25 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX1.4

Low

Station readings (20 stations within 25 km)

7.25

Median

7.37

Average

3.1

Low

12.0

High

PM2.5 µg/m³ · Model: 9.75 · Bias: +2.5

What is the 7-day forecast for Ulsan?

08-03

28.4° 22.7°

08-04

31.8° 23.2°

6.5 mm

08-05

31.0° 21.0°

0.44 mm

08-06

28.7° 23.3°

4.87 mm

08-07

34.6° 21.5°

08-08

30.9° 22.2°

0.19 mm

08-09

27.2° 21.5°

0.06 mm

Both models agree Avg diff: 2.7°C

Where are air quality stations near Ulsan?

Ulsan (울산)

0.5 km PM2.5: 8.2 µg/m³

Ulsan (울산)

0.5 km PM2.5: 10.1 µg/m³

Ulsan (울산)

0.5 km PM2.5: 10.1 µg/m³

Ulsan (울산)

0.5 km PM2.5: 9.1 µg/m³

Ulsan (울산)

0.5 km PM2.5: 12.0 µg/m³

Sinjeong2-dong, Ulsan, South Korea (신정로 울산)

1.5 km PM2.5: 15.9 µg/m³

Sinjeong2-dong, Ulsan, South Korea (신정로 울산)

1.5 km PM2.5: 24.0 µg/m³

Sinjeong2-dong, Ulsan, South Korea (신정로 울산)

1.5 km PM2.5: 15.9 µg/m³

Sinjeong2-dong, Ulsan, South Korea (신정로 울산)

1.5 km PM2.5: 12.0 µg/m³

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

1.6 km PM2.5: 6.0 µg/m³

What cities are near Ulsan?

25 Ungsang 27 Yangsan 14 Gijang 31 Gyeongju 34 Miryang 32 Kimhae 46 Yeonil 47 Pohang 25 Busan 21 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 2026-08-07T23:56 UTC.