Air Quality in Hiji, Japan

Cloudy
22.8°C · 87.2% humidity
22.8°
Feels 22.8°
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
27 5pm
27
34
34 8pm
34
24
24 11pm
24
24
24 2am
24
24
24 5am
24
24
24 8am
24
24
24 11am
24
24
24 2pm
24
24
AD 728×90

Air Quality Index Trend

45h · 3 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.

87.2%
Humidity
11.3 km/h
Wind NNW
1002.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
34
8.2 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Hiji?

Temperature & Precipitation

PM2.5 Trend

45h · 3 stations
PM2.58.2 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
8.2
Median
8.2
Average
8.2
Low
8.2
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -0.9

What is the 7-day forecast for Hiji?

09-05
26.7° 22.8°
3.25 mm
09-06
29.8° 21.3°
2.06 mm
09-07
28.4° 21.8°
0.19 mm
09-08
26.4° 22.1°
0.88 mm
09-09
27.6° 21.9°
2.38 mm
09-10
27.4° 19.7°
4.94 mm
09-11
27.3° 21.4°
7.56 mm
Both models agree Avg diff: 2.2°C

Where are air quality stations near Hiji?

17
Oita (大分)
16.3 km PM2.5: 4.1 µg/m³
26
Yokota, Oita, Oita Prefecture, Japan (大在小学校大分市)
22.2 km PM2.5: 6.2 µg/m³
37
Kunisakimachi Tsurugawa, Kunisaki-shi, Ōita-ken, Japan (国東高等学校国東市)
28.0 km PM2.5: 8.9 µg/m³

What cities are near Hiji?

34 Kitsuki 34 Beppu 34 Ōita 34 Tsurusaki 23 Bungo-Takada-shi 34 Yufu 21 Yokkaichi 26 Kunisaki 30 Tsukawaki 18 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 2026-09-05T11:13 UTC.