Air Quality in Hiji, Japan

Cloudy
21.5°C · 70.2% humidity
21.5°
Feels 21.5°
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast
66 8am
54
34
31 11am
34
34
34 2pm
34
34
34 5pm
34
54
54 8pm
54
66
66 11pm
66
66
66 2am
66
83
66 5am
66
66
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.

70.2%
Humidity
7.5 km/h
Wind NE
1013.8 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
31
7.36 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Hiji?

Temperature & Precipitation

PM2.5 Trend

47h · 11 stations
PM2.57.36 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (3 stations within 25 km)
7.36
Median
7.13
Average
6.0
Low
8.2
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +3.5

What is the 7-day forecast for Hiji?

06-09
26.5° 17.9°
06-10
20.9° 16.5°
0.25 mm
06-11
27.6° 17.4°
06-12
26.2° 18.9°
0.13 mm
06-13
28.3° 18.7°
11.56 mm
06-14
22.6° 17.7°
11.56 mm
06-15
27.8° 17.2°
16.81 mm
Both models agree Avg diff: 1.8°C

Where are air quality stations near Hiji?

9
Noguchihara, Beppu, Oita Prefecture, Japan (青山中学校別府市)
10.2 km PM2.5: 2.2 µg/m³
34
Oita (大分)
16.3 km PM2.5: 8.2 µg/m³
7
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
20.5 km PM2.5: 1.7 µg/m³
25
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
20.5 km PM2.5: 6.0 µg/m³
21
Yokota, Oita, Oita Prefecture, Japan (大在小学校大分市)
22.2 km PM2.5: 5.0 µg/m³
11
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: 2.6 µg/m³
46
Nakahetsugi, Oita, Oita Prefecture, Japan (戸次中学校大分市)
27.5 km PM2.5: 11.0 µg/m³
11
Kunisakimachi Tsurugawa, Kunisaki-shi, Ōita-ken, Japan (国東高等学校国東市)
28.0 km PM2.5: 2.6 µg/m³

What cities are near Hiji?

30 Kitsuki 30 Beppu 34 Ōita 26 Tsurusaki 25 Bungo-Takada-shi 31 Yufu 24 Yokkaichi 16 Kunisaki 34 Tsukawaki 24 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 2026-06-09T02:10 UTC.