Air Quality in Hiji, Japan
Windy
18.4°C · 94.8% humidity
18.4°
Feels 18.4°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
AQI Forecast
54
11pm
54
54
46
2am
48
50
51
5am
32
32
26
8am
33
26
25
11am
25
25
25
2pm
25
25
25
5pm
25
27
34
8pm
34
54
Air Quality Index Trend
47h · 11 stnHiji'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.
94.8%
Humidity
54.8 km/h
Wind SE
1017.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
11.11 µg/m³
PM10
41.15 µg/m³
050100150200300500
What is the weather forecast for Hiji?
Temperature & Precipitation
PM2.5 Trend
47h · 11 stationsPM2.511.11 µg/m³
✓ WHO
Good
PM1041.15 µg/m³
Good
UV INDEX0.7
Low
Station readings (4 stations within 25 km)
11.11
Median
10.2
Average
8.2
Low
12.0
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +5.2
What is the 7-day forecast for Hiji?
05-29
18.4° 17.3°
4.81 mm
05-30
20.8° 16.9°
3.19 mm
05-31
23.4° 18.1°
0.06 mm
06-01
26.8° 17.9°
0.13 mm
06-02
21.6° 16.9°
0.06 mm
06-03
23.6° 16.2°
14.13 mm
06-04
23.8° 15.9°
6.44 mm
Both models agree
Avg diff: 2.3°C
Where are air quality stations near Hiji?
21
Noguchihara, Beppu, Oita Prefecture, Japan (青山中学校別府市)
34
Oita (大分)
34
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
67
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
51
Yokota, Oita, Oita Prefecture, Japan (大在小学校大分市)
44
Shōnaichō Kakiharu, Yufu-shi, Ōita-ken, Japan (中部保健所由布保健部由布市)
23
Nakahetsugi, Oita, Oita Prefecture, Japan (戸次中学校大分市)
62
Kunisakimachi Tsurugawa, Kunisaki-shi, Ōita-ken, Japan (国東高等学校国東市)
What cities are near Hiji?
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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 2026-05-29T17:43 UTC.