Air Quality in Isumi, Japan
Overcast
21.6°C · 95.7% humidity
21.6°
Feels 21.6°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Isumi's air quality — share it
AQI Forecast
Calibrated
18
10am
18
18
26
1pm
24
22
21
4pm
20
20
17
7pm
17
17
18
10pm
18
18
18
1am
18
18
18
4am
18
18
18
7am
18
18
CAMS model
adj -9
27
27
27
27
27
27
27
27
27
25
25
25
27
27
27
27
27
27
27
27
27
27
27
27
Air Quality Index Trend
46h · 23 stnIsumi'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.
95.7%
Humidity
26.9 km/h
Wind N
1009.2 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.25 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Isumi?
Temperature & Precipitation
PM2.5 Trend
46h · 23 stationsPM2.56.25 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
What is the 7-day forecast for Isumi?
08-03
26.8° 21.6°
9.06 mm
08-04
29.0° 22.1°
0.31 mm
08-05
27.6° 24.5°
1.06 mm
08-06
27.6° 24.0°
11.25 mm
08-07
29.9° 24.9°
9.69 mm
08-08
28.2° 25.9°
17.56 mm
08-09
31.0° 21.5°
0.5 mm
Both models agree
Avg diff: 2.1°C
Where are air quality stations near Isumi?
25
Takashi, Mobara, Chiba Prefecture, Japan (茂原高師茂原市)
21
Takashi, Mobara, Chiba Prefecture, Japan (茂原高師茂原市)
What cities are near Isumi?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T04:52 UTC.