Air Quality in Isumi, Japan

Windy
21.8°C · 86.9% humidity
21.8°
Feels 21.8°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
34 4am
34
34
54 7am
48
44
32 10am
30
31
30 1pm
29
35
55 4pm
55
67
66 7pm
54
54
34 10pm
27
27
27 1am
34
34
AD 728×90

Air Quality Index Trend

47h · 18 stn

Isumi'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 Isumi is 2.7× the WHO annual guideline of 5 µg/m³.

86.9%
Humidity
124.0 km/h
Wind SSE
1002.8 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
54
13.7 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Isumi?

Temperature & Precipitation

PM2.5 Trend

47h · 18 stations
PM2.513.7 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX5.9
High
AD 300×250

What is the 7-day forecast for Isumi?

05-28
24.9° 12.8°
0.13 mm
05-29
22.2° 16.5°
0.19 mm
05-30
20.3° 15.8°
2.38 mm
05-31
23.1° 16.6°
0.69 mm
06-01
21.7° 17.9°
0.25 mm
06-02
20.9° 16.6°
06-03
24.5° 19.6°
0.56 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near Isumi?

50
Takashi, Mobara, Chiba Prefecture, Japan (茂原高師茂原市)
23.8 km PM2.5: 12.0 µg/m³
18
Takashi, Mobara, Chiba Prefecture, Japan (茂原高師茂原市)
23.8 km PM2.5: 4.3 µg/m³
13
Takashi, Mobara, Chiba Prefecture, Japan (茂原高師茂原市)
23.8 km PM2.5: 3.1 µg/m³

What cities are near Isumi?

54 Ōhara 30 Katsuura 32 Mobara 32 Kamogawa 23 Ōamishirasato 29 Ōami 10 Tōgane 36 Sodegaura 29 Narutō 35 Ichihara
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T22:50 UTC.