Air Quality in Yamaguchi, Japan
Drizzle
26.7°C · 87.0% humidity
26.7°
Feels 26.7°
64
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
Yamaguchi's air quality — share it
AQI Forecast
27
5am
27
34
64
8am
48
49
65
11am
62
60
58
2pm
57
56
55
5pm
55
35
55
8pm
54
54
54
11pm
54
54
54
2am
54
54
Air Quality Index Trend
44h · 11 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 1.2× the WHO 24-hour guideline of 15 µg/m³.
87.0%
Humidity
72.1 km/h
Wind ESE
993.1 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
18.29 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Yamaguchi?
Temperature & Precipitation
PM2.5 Trend
44h · 11 stationsPM2.518.29 µg/m³
×1.2 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX2.2
Moderate
Station readings (2 stations within 25 km)
18.29
Median
17.1
Average
15.9
Low
18.3
High
PM2.5 µg/m³ · Model: 8.2 · Bias: -10.1
What is the 7-day forecast for Yamaguchi?
07-21
29.0° 22.5°
0.06 mm
07-22
29.7° 22.7°
0.5 mm
07-23
27.1° 17.9°
8.0 mm
07-24
26.5° 24.1°
5.0 mm
07-25
30.7° 21.3°
0.13 mm
07-26
28.5° 21.7°
07-27
28.7° 22.3°
0.06 mm
Both models agree
Avg diff: 2.3°C
Where are air quality stations near Yamaguchi?
57
Yamaguchi, Yamaguchi, Japan (環境保健センター山口市)
26
Yamaguchi, Yamaguchi, Japan (環境保健センター山口市)
59
Emukai, Hagi, Yamaguchi, Japan (萩健康福祉センター萩市)
What cities are near Yamaguchi?
Get AQI alerts for Yamaguchi
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T23:16 UTC.