What is the air quality in Hiji today?

The current Air Quality Index (AQI) in Hiji is 26 (Good). PM2.5 concentration is 6.16 µg/m³.

What is the temperature in Hiji right now?

The current temperature in Hiji is 20.9°C (feels like 20.9°C). Humidity is 83.2% and wind speed is 12.3 km/h.

Is it safe to go outside in Hiji?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Hiji, Japan

Drizzle

20.9°C · 83.2% humidity

20.9°

Feels 20.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

7 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 10 stn

View full history →

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.

83.2%

Humidity

12.3 km/h

Wind NNW

1015.9 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.16 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Hiji?

Temperature & Precipitation

PM2.5 Trend

45h · 10 stations

PM2.56.16 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (7 stations within 25 km)

6.16

Median

6.43

Average

4.1

Low

13.5

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -0.2

What is the 7-day forecast for Hiji?

10-21

20.9° 14.1°

9.75 mm

10-22

23.9° 15.7°

10-23

20.5° 14.4°

0.19 mm

10-24

19.3° 17.1°

0.31 mm

10-25

17.0° 9.5°

3.13 mm

10-26

18.2° 9.1°

10-27

17.4° 12.4°

0.31 mm

Both models agree Avg diff: 4.9°C

Where are air quality stations near Hiji?

Oita (大分)

16.3 km PM2.5: 5.0 µg/m³

Kanaikemachi, Oita, Oita Prefecture, Japan (中央測定局大分市)

16.8 km PM2.5: 5.0 µg/m³

Misa, Oita, Oita Prefecture, Japan (三佐小学校大分市)

19.2 km PM2.5: 8.2 µg/m³

Misa, Oita, Oita Prefecture, Japan (三佐小学校大分市)

19.2 km PM2.5: 4.1 µg/m³

Misa, Oita, Oita Prefecture, Japan (三佐小学校大分市)

19.2 km PM2.5: 4.1 µg/m³

Misa, Oita, Oita Prefecture, Japan (三佐小学校大分市)

19.2 km PM2.5: 4.1 µg/m³

Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)

20.5 km PM2.5: 8.2 µg/m³

Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)

20.5 km PM2.5: 6.0 µg/m³

Yokota, Oita, Oita Prefecture, Japan (大在小学校大分市)

22.2 km PM2.5: 13.5 µg/m³

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: 3.1 µg/m³

What cities are near Hiji?

27 Kitsuki 27 Beppu 22 Ōita 22 Tsurusaki 22 Bungo-Takada-shi 19 Yufu 17 Yokkaichi 31 Kunisaki 21 Tsukawaki 35 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 2026-10-21T06:02 UTC.