Air Quality in Aso, Japan

Drizzle
23.6°C · 54.5% humidity
23.6°
Feels 23.6°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast
54 8am
54
34
20 11am
24
47
49 2pm
50
51
52 5pm
53
53
53 8pm
54
54
66 11pm
66
66
66 2am
66
66
66 5am
66
66
AD 728×90

Air Quality Index Trend

46h · 18 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.

54.5%
Humidity
7.1 km/h
Wind N
1013.2 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
20
4.65 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Aso?

Temperature & Precipitation

PM2.5 Trend

46h · 18 stations
PM2.54.65 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (2 stations within 25 km)
4.65
Median
5.05
Average
4.6
Low
5.5
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +6.2

What is the 7-day forecast for Aso?

06-09
23.6° 16.4°
0.94 mm
06-10
16.3° 12.3°
1.5 mm
06-11
26.9° 15.8°
0.75 mm
06-12
24.0° 16.2°
0.75 mm
06-13
27.4° 17.1°
22.69 mm
06-14
20.2° 14.8°
38.87 mm
06-15
22.9° 14.9°
37.06 mm
Both models agree Avg diff: 1.9°C

Where are air quality stations near Aso?

20
Uchinomaki, Aso, Kumamoto, Japan (阿蘇保健所阿蘇市)
4.7 km PM2.5: 4.8 µg/m³
57
Hikimizu, Kumamoto, Japan (大津町引水菊池郡大津町)
19.5 km PM2.5: 15.0 µg/m³

What cities are near Aso?

23 Ōzu 22 Kikuchi 25 Okino 25 Kōshi 23 Takedamachi 21 Shimada 24 Mifune 21 Kotō 32 Uekimachi-mōno 13 Yamaga
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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 2026-06-09T02:02 UTC.