Air Quality in Usuki, Japan

Drizzle
25.9°C · 97.8% humidity
25.9°
Feels 25.9°
72
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
5 stations

Nearby Monitoring Stations

AQI Forecast
54 6am
54
54
72 9am
79
75
73 12pm
59
69
68 3pm
68
67
67 6pm
67
66
54 9pm
66
66
66 12am
66
54
54 3am
54
54
AD 728×90

Air Quality Index Trend

44h · 7 stn

Usuki'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 24-hour guideline of 15 µg/m³.

97.8%
Humidity
70.3 km/h
Wind SE
993.0 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
72
22.3 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Usuki?

Temperature & Precipitation

PM2.5 Trend

44h · 7 stations
PM2.522.3 µg/m³ ×1.5 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (5 stations within 25 km)
22.3
Median
20.42
Average
11.8
Low
32.1
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -8.8

What is the 7-day forecast for Usuki?

07-22
27.6° 22.8°
10.75 mm
07-23
28.8° 18.2°
4.0 mm
07-24
27.9° 24.6°
5.25 mm
07-25
31.3° 21.3°
0.69 mm
07-26
30.0° 22.6°
8.38 mm
07-27
29.8° 21.9°
0.25 mm
07-28
30.2° 23.9°
1.75 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near Usuki?

43
Nakahetsugi, Oita, Oita Prefecture, Japan (戸次中学校大分市)
14.0 km PM2.5: 10.3 µg/m³
24
Saganoseki, Oita, Oita Prefecture, Japan (佐賀関大分市)
15.5 km PM2.5: 5.8 µg/m³
23
Yokota, Oita, Oita Prefecture, Japan (大在小学校大分市)
15.9 km PM2.5: 5.5 µg/m³
29
Nagashimamachi, Saeki, Oita Prefecture, Japan (南部振興局佐伯市)
20.0 km PM2.5: 7.0 µg/m³
34
Oita (大分)
22.3 km PM2.5: 8.2 µg/m³
26
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
25.4 km PM2.5: 6.2 µg/m³
35
Yokose, Oita, Oita Prefecture, Japan (西部清掃事業所大分市)
25.4 km PM2.5: 8.4 µg/m³
65
Miemachi Ichiba, Bungoono, Oita Prefecture, Japan (豊肥保健所豊後大野市)
26.5 km PM2.5: 18.8 µg/m³
11
Miemachi Ichiba, Bungoono, Oita Prefecture, Japan (豊肥保健所豊後大野市)
26.5 km PM2.5: 2.6 µg/m³

What cities are near Usuki?

78 Tsukumiura 51 Tsurusaki 76 Saiki 54 Ōita 93 Mie 63 Beppu 55 Kitsuki 56 Hiji 69 Yufu 70 Takedamachi
Get AQI alerts for Usuki

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-22T00:21 UTC.