Air Quality in Seoul, South Korea

Partly Cloudy
27.4°C · 54.3% humidity
27.4°
Feels 29.9°
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
75 stations

Nearby Monitoring Stations

AQI Forecast
54 7pm
54
54
55 10pm
54
54
54 1am
34
34
34 4am
34
34
54 7am
54
54
54 10am
54
54
54 1pm
54
54
54 4pm
66
66
AD 728×90

Air Quality Index Trend

45h · 84 stn

Seoul's air quality is affected by domestic vehicle emissions, industrial activity, and transboundary fine dust from China. Spring dust events and winter heating season create the worst air quality conditions.

54.3%
Humidity
21.9 km/h
Wind ENE
1006.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
55
13.78 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Seoul?

Temperature & Precipitation

PM2.5 Trend

45h · 84 stations
PM2.513.78 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (75 stations within 25 km)
13.78
Median
7.96
Average
5.8
Low
34.0
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -3.8

What is the 7-day forecast for Seoul?

09-05
29.0° 20.4°
7.31 mm
09-06
29.1° 19.6°
10.88 mm
09-07
27.9° 20.6°
09-08
32.7° 20.3°
09-09
27.3° 22.5°
09-10
25.3° 19.5°
36.38 mm
09-11
29.2° 20.6°
0.06 mm
Both models agree Avg diff: 2.4°C

Where are air quality stations near Seoul?

33
Seoul (서울)
0.1 km PM2.5: 7.9 µg/m³
38
Jung-gu, Seoul, South Korea (중구 서울)
0.3 km PM2.5: 9.1 µg/m³
46
Jongro, Seoul, South Korea (종로 서울)
1.7 km PM2.5: 11.0 µg/m³
32
Jongno-gu, Seoul, South Korea (종로구 서울)
2.4 km PM2.5: 7.7 µg/m³
33
Jongno-gu, Seoul, South Korea (종로구 서울)
2.4 km PM2.5: 7.9 µg/m³
31
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 7.4 µg/m³
32
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 7.7 µg/m³
32
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 7.7 µg/m³
34
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 8.2 µg/m³
28
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 6.7 µg/m³

What cities are near Seoul?

33 Gwangmyeong 32 Siheungdong 33 Guri-si 26 Goyang-si 37 Bucheon-si 31 Anyang-si 34 Seongnam-si 30 Hanam 31 Uijeongbu-si 31 Wabu
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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 2026-09-05T13:59 UTC.