Air Quality in Usuki, Japan
Rain
17.9°C · 98.4% humidity
17.9°
Feels 17.9°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
AQI Forecast
34
6am
34
34
30
9am
49
54
57
12pm
60
61
63
3pm
52
52
53
6pm
53
53
54
9pm
54
34
34
12am
34
34
34
3am
34
34
Air Quality Index Trend
47h · 6 stnUsuki'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. Current PM2.5 concentration in Usuki is 1.5× the WHO annual guideline of 5 µg/m³.
98.4%
Humidity
0.9 km/h
Wind SW
1003.4 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
7.26 µg/m³
PM10▲
66.15 µg/m³
050100150200300500
What is the weather forecast for Usuki?
Temperature & Precipitation
PM2.5 Trend
47h · 6 stationsPM2.57.26 µg/m³
✓ WHO
Good
PM1066.15 µg/m³
Moderate
UV INDEX10.9
Extreme
Station readings (4 stations within 25 km)
7.26
Median
7.27
Average
4.1
Low
9.1
High
PM2.5 µg/m³ · Model: 20.3 · Bias: +13.0
What is the 7-day forecast for Usuki?
05-29
18.1° 17.3°
8.5 mm
05-30
20.0° 16.2°
4.0 mm
05-31
23.9° 17.6°
0.19 mm
06-01
26.0° 17.2°
0.88 mm
06-02
19.0° 17.1°
1.94 mm
06-03
24.1° 15.0°
12.94 mm
06-04
23.3° 15.5°
2.81 mm
Both models agree
Avg diff: 2.9°C
Where are air quality stations near Usuki?
42
Nakahetsugi, Oita, Oita Prefecture, Japan (戸次中学校大分市)
21
Saganoseki, Oita, Oita Prefecture, Japan (佐賀関大分市)
53
Yokota, Oita, Oita Prefecture, Japan (大在小学校大分市)
9
Nagashimamachi, Saeki, Oita Prefecture, Japan (南部振興局佐伯市)
18
Oita (大分)
19
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
34
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
39
Miemachi Ichiba, Bungoono, Oita Prefecture, Japan (豊肥保健所豊後大野市)
57
Miemachi Ichiba, Bungoono, Oita Prefecture, Japan (豊肥保健所豊後大野市)
What cities are near 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 2026-05-29T00:11 UTC.