Air Quality in Aso, Japan

Heavy Rain
16.7°C · 98.3% humidity
16.7°
Feels 16.7°
68
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
66 6am
66
54
68 9am
76
73
71 12pm
70
69
68 3pm
67
67
67 6pm
66
54
66 9pm
66
66
83 12am
83
83
66 3am
66
66
AD 728×90

Air Quality Index Trend

47h · 17 stn

Aso'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 Aso is 4.1× the WHO annual guideline of 5 µg/m³.

98.3%
Humidity
41.5 km/h
Wind SE
1004.8 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
68
20.3 µg/m³
PM10
60
73.05 µg/m³
050100150200300500

What is the weather forecast for Aso?

Temperature & Precipitation

PM2.5 Trend

47h · 17 stations
PM2.520.3 µg/m³ ×1.4 WHO
Moderate
PM1073.05 µg/m³
Moderate
UV INDEX9.4
Very High
AD 300×250

What is the 7-day forecast for Aso?

05-29
17.3° 14.9°
19.25 mm
05-30
18.5° 14.8°
1.0 mm
05-31
23.2° 15.0°
06-01
27.2° 14.7°
0.38 mm
06-02
18.1° 15.8°
2.13 mm
06-03
20.4° 14.4°
14.0 mm
06-04
23.3° 14.1°
17.06 mm
Both models agree Avg diff: 2.4°C

Where are air quality stations near Aso?

34
Uchinomaki, Aso, Kumamoto, Japan (阿蘇保健所阿蘇市)
4.7 km PM2.5: 8.2 µg/m³
31
Hikimizu, Kumamoto, Japan (大津町引水菊池郡大津町)
19.5 km PM2.5: 7.4 µg/m³

What cities are near Aso?

35 Ōzu 36 Kikuchi 35 Okino 36 Kōshi 20 Takedamachi 30 Shimada 32 Mifune 26 Kotō 45 Uekimachi-mōno 34 Yamaga
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T00:10 UTC.