Air Quality in Hiji, Japan

Windy
20.5°C · 87.5% humidity
20.5°
Feels 20.5°
33
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast
54 3am
54
54
33 6am
34
27
34 9am
27
25
25 12pm
25
25
25 3pm
25
25
25 6pm
27
34
34 9pm
54
54
54 12am
54
54
AD 728×90

Air Quality Index Trend

47h · 13 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.

87.5%
Humidity
80.7 km/h
Wind SE
1011.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
33
8.01 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Hiji?

Temperature & Precipitation

PM2.5 Trend

47h · 13 stations
PM2.58.01 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (6 stations within 25 km)
8.01
Median
7.78
Average
4.3
Low
9.6
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +2.8

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: 2.4°C

Where are air quality stations near Hiji?

13
Noguchihara, Beppu, Oita Prefecture, Japan (青山中学校別府市)
10.2 km PM2.5: 3.1 µg/m³
34
Oita (大分)
16.3 km PM2.5: 8.2 µg/m³
45
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
20.5 km PM2.5: 10.8 µg/m³
38
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
20.5 km PM2.5: 9.1 µg/m³
42
Yokota, Oita, Oita Prefecture, Japan (大在小学校大分市)
22.2 km PM2.5: 10.1 µg/m³
41
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: 9.8 µg/m³
31
Nakahetsugi, Oita, Oita Prefecture, Japan (戸次中学校大分市)
27.5 km PM2.5: 7.4 µg/m³
41
Kunisakimachi Tsurugawa, Kunisaki-shi, Ōita-ken, Japan (国東高等学校国東市)
28.0 km PM2.5: 9.8 µg/m³

What cities are near Hiji?

35 Kitsuki 34 Beppu 34 Ōita 35 Tsurusaki 36 Bungo-Takada-shi 21 Yufu 30 Yokkaichi 46 Kunisaki 42 Tsukawaki 37 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 2026-05-29T21:38 UTC.