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
AD 728×90

Air Quality Index Trend

47h · 11 stn

Hiji'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▲
46
11.11 µg/m³
PM10
38
41.15 µg/m³
050100150200300500

What is the weather forecast for Hiji?

Temperature & Precipitation

PM2.5 Trend

47h · 11 stations
PM2.511.11 µg/m³ ✓ WHO
Good
PM1041.15 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
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)
10.2 km PM2.5: 5.0 µg/m³
34
Oita (大分)
16.3 km PM2.5: 8.2 µg/m³
34
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
20.5 km PM2.5: 8.2 µg/m³
67
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
20.5 km PM2.5: 19.7 µg/m³
51
Yokota, Oita, Oita Prefecture, Japan (大在小学校大分市)
22.2 km PM2.5: 12.1 µg/m³
44
Shōnaichō Kakiharu, Yufu-shi, Ōita-ken, Japan (中部保健所由布保健部由布市)
23.4 km PM2.5: 10.6 µg/m³
23
Nakahetsugi, Oita, Oita Prefecture, Japan (戸次中学校大分市)
27.5 km PM2.5: 5.5 µg/m³
62
Kunisakimachi Tsurugawa, Kunisaki-shi, Ōita-ken, Japan (国東高等学校国東市)
28.0 km PM2.5: 17.3 µg/m³

What cities are near Hiji?

39 Kitsuki 50 Beppu 49 Ōita 36 Tsurusaki 34 Bungo-Takada-shi 45 Yufu 30 Yokkaichi 23 Kunisaki 48 Tsukawaki 34 Usuki
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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.