Air Quality in Iruma, Japan

Drizzle
22.3°C · 88.6% humidity
22.3°
Feels 22.3°
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
25 stations

Nearby Monitoring Stations

AQI Forecast
27 6am
27
27
55 9am
47
41
37 12pm
34
39
38 3pm
37
56
55 6pm
35
55
55 9pm
54
54
54 12am
54
54
54 3am
54
34
AD 728×90

Air Quality Index Trend

47h · 8 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.

88.6%
Humidity
15.9 km/h
Wind N
1003.2 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
55
13.93 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Iruma?

Temperature & Precipitation

PM2.5 Trend

47h · 8 stations
PM2.513.93 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (25 stations within 25 km)
13.93
Median
15.02
Average
5.8
Low
23.0
High
PM2.5 µg/m³ · Model: 16.8 · Bias: +2.9

What is the 7-day forecast for Iruma?

07-22
26.4° 22.0°
1.69 mm
07-23
25.3° 18.5°
2.44 mm
07-24
25.4° 22.0°
4.44 mm
07-25
30.8° 21.5°
0.38 mm
07-26
29.4° 21.0°
0.13 mm
07-27
29.9° 22.0°
10.31 mm
07-28
28.6° 23.6°
5.81 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Iruma?

16
Azumacho, Iruma, Saitama, Japan (入間入間市)
3.0 km PM2.5: 3.8 µg/m³
53
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
5.4 km PM2.5: 13.1 µg/m³
71
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
5.4 km PM2.5: 21.6 µg/m³
36
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
5.7 km PM2.5: 8.6 µg/m³
40
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
8.6 km PM2.5: 9.6 µg/m³
34
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
8.6 km PM2.5: 8.2 µg/m³
11
Higashioume, Oume, Tokyo, Japan (青梅市東青梅青梅市)
8.9 km PM2.5: 2.6 µg/m³
23
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
9.7 km PM2.5: 5.5 µg/m³
55
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
9.7 km PM2.5: 14.0 µg/m³
7
Iseharachō, Kawagoe-shi, Saitama-ken, Japan (川越市霞ケ関川越市)
12.7 km PM2.5: 1.7 µg/m³

What cities are near Iruma?

48 Sayama 52 Hakonegasaki 55 Hannō 48 Hamura 55 Yokota 64 Higashiyamato 57 Tokorozawa 27 Fussa 61 Musashimurayama 55 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 2026-07-22T00:21 UTC.