Air Quality in Yamaguchi, Japan
Drizzle
26.7°C · 87.0% humidity
26.7°
Feels 26.7°
80
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Yamaguchi's air quality — share it
AQI Forecast
27
6am
34
34
80
9am
72
81
73
12pm
68
64
61
3pm
59
58
57
6pm
36
55
55
9pm
55
54
54
12am
54
54
54
3am
54
54
Air Quality Index Trend
45h · 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 1.7× the WHO 24-hour guideline of 15 µg/m³.
87.0%
Humidity
72.1 km/h
Wind ESE
993.1 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
25.9 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Yamaguchi?
Temperature & Precipitation
PM2.5 Trend
45h · 11 stationsPM2.525.9 µg/m³
×1.7 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX10.9
Extreme
Station readings (1 station within 25 km)
25.9
Median
25.9
Average
25.9
Low
25.9
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -18.5
What is the 7-day forecast for Yamaguchi?
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
07-28
27.8° 22.7°
1.19 mm
Both models agree
Avg diff: 2.3°C
Where are air quality stations near Yamaguchi?
23
Yamaguchi, Yamaguchi, Japan (環境保健センター山口市)
19
Yamaguchi, Yamaguchi, Japan (環境保健センター山口市)
68
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 2026-07-22T00:21 UTC.