Air Quality in Seoul, South Korea

Drizzle
26.9°C · 37.1% humidity
26.9°
Feels 26.9°
116
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
117 stations

Nearby Monitoring Stations

AQI Forecast
54 12pm
54
54
116 3pm
98
86
77 6pm
70
78
74 9pm
72
87
86 12am
85
85
84 3am
84
84
83 6am
83
83
83 9am
66
66
AD 728×90

Air Quality Index Trend

47h · 6 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. Current PM2.5 concentration in Seoul is 2.8× the WHO 24-hour guideline of 15 µg/m³.

37.1%
Humidity
49.4 km/h
Wind W
1006.0 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
116
41.47 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Seoul?

Temperature & Precipitation

PM2.5 Trend

47h · 6 stations
PM2.541.47 µg/m³ ×2.8 WHO
Unhealthy for sensitive groups
PM1027.4 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (117 stations within 25 km)
41.47
Median
33.5
Average
14.0
Low
46.1
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -28.0

What is the 7-day forecast for Seoul?

05-30
26.9° 16.8°
3.94 mm
05-31
24.7° 18.7°
1.38 mm
06-01
28.9° 18.9°
0.06 mm
06-02
30.2° 21.7°
06-03
24.2° 16.3°
0.75 mm
06-04
24.1° 18.4°
2.31 mm
06-05
28.8° 18.0°
0.13 mm
Both models agree Avg diff: 3.1°C

Where are air quality stations near Seoul?

93
Seoul (서울)
0.1 km PM2.5: 32.1 µg/m³
72
Seoul (서울)
0.1 km PM2.5: 22.1 µg/m³
59
Seoul (서울)
0.1 km PM2.5: 15.9 µg/m³
65
Cheonggyecheon, Seoul, South Korea (청계천로 서울)
1.8 km PM2.5: 18.8 µg/m³
82
Jongno-gu, Seoul, South Korea (종로구 서울)
2.4 km PM2.5: 26.8 µg/m³
50
Jongno-gu, Seoul, South Korea (종로구 서울)
2.4 km PM2.5: 12.0 µg/m³
82
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 26.8 µg/m³
5
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 1.2 µg/m³
15
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 3.6 µg/m³
72
Yongsan-gu, Seoul, South Korea (용산구 서울)
3.7 km PM2.5: 22.1 µg/m³

What cities are near Seoul?

107 Gwangmyeong 100 Siheungdong 81 Guri-si 80 Goyang-si 96 Bucheon-si 104 Anyang-si 70 Seongnam-si 100 Hanam 104 Uijeongbu-si 102 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 2026-05-30T06:06 UTC.