Air Quality in Iruma, Japan

Windy
21.0°C · 73.3% humidity
21.0°
Feels 21.0°
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
29 stations

Nearby Monitoring Stations

AQI Forecast
54 3am
54
54
31 6am
38
42
46 9am
21
23
24 12pm
25
32
53 3pm
53
53
54 6pm
54
54
34 9pm
25
25
25 12am
25
27
AD 728×90

Air Quality Index Trend

48h · 1 stn

Iruma'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 Iruma is 1.5× the WHO annual guideline of 5 µg/m³.

73.3%
Humidity
75.6 km/h
Wind SSE
998.4 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
31
7.55 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Iruma?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.57.55 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (29 stations within 25 km)
7.55
Median
7.11
Average
0.2
Low
13.1
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +2.5

What is the 7-day forecast for Iruma?

05-28
28.3° 13.5°
0.13 mm
05-29
22.2° 17.2°
0.63 mm
05-30
21.8° 16.1°
0.88 mm
05-31
24.1° 17.0°
06-01
25.5° 18.1°
06-02
24.8° 16.5°
2.5 mm
06-03
26.1° 18.8°
0.56 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Iruma?

34
Azumacho, Iruma, Saitama, Japan (入間入間市)
3.0 km PM2.5: 8.2 µg/m³
55
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
5.4 km PM2.5: 14.0 µg/m³
31
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
5.4 km PM2.5: 7.4 µg/m³
12
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
5.7 km PM2.5: 2.9 µg/m³
30
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
8.6 km PM2.5: 7.2 µg/m³
46
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
8.6 km PM2.5: 11.0 µg/m³
25
Higashioume, Oume, Tokyo, Japan (青梅市東青梅青梅市)
8.9 km PM2.5: 6.0 µg/m³
33
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
9.7 km PM2.5: 7.9 µg/m³
17
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
9.7 km PM2.5: 4.1 µg/m³
25
Iseharachō, Kawagoe-shi, Saitama-ken, Japan (川越市霞ケ関川越市)
12.7 km PM2.5: 6.0 µg/m³

What cities are near Iruma?

35 Sayama 28 Hakonegasaki 32 Hannō 25 Hamura 29 Yokota 33 Higashiyamato 42 Tokorozawa 25 Fussa 30 Musashimurayama 29 Akishima
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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 2026-05-28T21:35 UTC.