Air Quality in Ulsan, South Korea

Heavy Rain
22.0°C · 97.8% humidity
22.0°
Feels 22.0°
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
28 stations

Nearby Monitoring Stations

AQI Forecast
54 4am
34
34
55 7am
34
27
25 10am
25
25
25 1pm
25
25
25 4pm
27
27
27 7pm
27
34
34 10pm
54
54
54 1am
54
54
AD 728×90

Air Quality Index Trend

48h · 3 stn

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.

97.8%
Humidity
60.0 km/h
Wind NNE
995.5 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
55
13.92 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Ulsan?

Temperature & Precipitation

PM2.5 Trend

48h · 3 stations
PM2.513.92 µg/m³ ✓ WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (28 stations within 25 km)
13.92
Median
12.44
Average
1.4
Low
22.1
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +2.4

What is the 7-day forecast for Ulsan?

07-21
27.2° 21.0°
2.5 mm
07-22
26.1° 21.8°
37.81 mm
07-23
28.1° 18.3°
14.69 mm
07-24
28.3° 24.9°
7.0 mm
07-25
32.5° 19.1°
1.13 mm
07-26
32.4° 20.8°
07-27
25.7° 20.9°
1.88 mm
Both models agree Avg diff: 3.7°C

Where are air quality stations near Ulsan?

20
Ulsan (울산)
0.5 km PM2.5: 4.8 µg/m³
42
Ulsan (울산)
0.5 km PM2.5: 10.1 µg/m³
68
Ulsan (울산)
0.5 km PM2.5: 20.2 µg/m³
3
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 0.7 µg/m³
16
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 3.8 µg/m³
74
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 23.0 µg/m³
40
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 9.6 µg/m³
14
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 3.4 µg/m³
14
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 3.4 µg/m³
30
Sinjeong2-dong, Ulsan, South Korea (신정로 울산)
1.5 km PM2.5: 7.2 µg/m³

What cities are near Ulsan?

36 Ungsang 56 Yangsan 42 Gijang 29 Gyeongju 61 Miryang 60 Kimhae 53 Yeonil 54 Pohang 53 Busan 54 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 2026-07-21T22:58 UTC.