Air Quality in Unzen, Japan
Drizzle
26.5°C · 90.4% humidity
26.5°
Feels 26.5°
33
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Unzen's air quality — share it
AQI Forecast
27
5am
27
34
33
8am
54
34
34
11am
54
54
54
2pm
54
54
54
5pm
54
54
54
8pm
54
27
27
11pm
27
27
27
2am
25
25
Air Quality Index Trend
46h · 27 stnUnzen'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.
90.4%
Humidity
33.7 km/h
Wind ENE
990.0 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.99 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Unzen?
Temperature & Precipitation
PM2.5 Trend
46h · 27 stationsPM2.57.99 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
Station readings (3 stations within 25 km)
7.99
Median
9.3
Average
6.2
Low
13.5
High
PM2.5 µg/m³ · Model: 8.2 · Bias: +0.2
Both models agree
Avg diff: 1.6°C
Where are air quality stations near Unzen?
11
Obamacho Kitahonmachi, Unzen, Nagasaki, Japan (小浜大気測定局雲仙市)
19
Obamacho Kitahonmachi, Unzen, Nagasaki, Japan (小浜大気測定局雲仙市)
13
Obamacho Kitahonmachi, Unzen, Nagasaki, Japan (小浜大気測定局雲仙市)
29
Shindenmachi, Shimabara, Nagasaki, Japan (島原大気測定局島原市)
53
Mawatarimachi, Isahaya, Nagasaki, Japan (諫早諌早市)
55
Mawatarimachi, Isahaya, Nagasaki, Japan (諫早諌早市)
57
Kawanobori, Arao-shi, Kumamoto-ken, Japan (荒尾運動公園荒尾市)
28
Kawanobori, Arao-shi, Kumamoto-ken, Japan (荒尾運動公園荒尾市)
What cities are near Unzen?
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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 2026-07-21T23:15 UTC.