Air Quality in Yamaguchi, Japan
Drizzle
20.6°C · 87.8% humidity
20.6°
Feels 20.6°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Yamaguchi's air quality — share it
AQI Forecast
54
3am
54
54
30
6am
28
48
70
9am
74
59
61
12pm
63
63
64
3pm
65
65
53
6pm
54
54
54
9pm
34
34
34
12am
34
34
Air Quality Index Trend
46h · 15 stnYamaguchi'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. Current PM2.5 concentration in Yamaguchi is 1.4× the WHO annual guideline of 5 µg/m³.
87.8%
Humidity
15.2 km/h
Wind NNE
1003.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
7.2 µg/m³
PM10▲
48.05 µg/m³
050100150200300500
What is the weather forecast for Yamaguchi?
Temperature & Precipitation
PM2.5 Trend
46h · 15 stationsPM2.57.2 µg/m³
✓ WHO
Good
PM1048.05 µg/m³
Good
UV INDEX0.7
Low
Station readings (3 stations within 25 km)
7.2
Median
7.2
Average
7.2
Low
7.2
High
PM2.5 µg/m³ · Model: 19.2 · Bias: +12.0
What is the 7-day forecast for Yamaguchi?
05-28
19.8° 10.2°
34.69 mm
05-29
21.4° 16.3°
1.19 mm
05-30
21.8° 16.6°
1.25 mm
05-31
22.1° 18.3°
06-01
27.0° 18.3°
0.31 mm
06-02
23.9° 17.3°
0.25 mm
06-03
21.6° 16.0°
25.13 mm
Both models agree
Avg diff: 2.4°C
Where are air quality stations near Yamaguchi?
21
Yamaguchi, Yamaguchi, Japan (環境保健センター山口市)
24
Yamaguchi, Yamaguchi, Japan (環境保健センター山口市)
50
Emukai, Hagi, Yamaguchi, Japan (萩健康福祉センター萩市)
What cities are near Yamaguchi?
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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 2026-05-28T21:36 UTC.