What is the air quality in Iruma today?

The current Air Quality Index (AQI) in Iruma is 23 (Good). PM2.5 concentration is 5.49 µg/m³.

What is the temperature in Iruma right now?

The current temperature in Iruma is 21.5°C (feels like 21.5°C). Humidity is 91.4% and wind speed is 22.4 km/h.

Is it safe to go outside in Iruma?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Iruma, Japan

Drizzle

21.5°C · 91.4% humidity

21.5°

Feels 21.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

24 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

26 4pm

23 7pm

24 10pm

25 1am

26 4am

26 7am

28 10am

28 1pm

Station readings 4h ago

AQI 20

PM2.5 4.9 µg/m³ · 4h ago

CAMS model adj +1

Air Quality Index Trend

6h · 2 stn

View full history →

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.

91.4%

Humidity

22.4 km/h

Wind NE

1010.7 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.49 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Iruma?

Temperature & Precipitation

PM2.5 Trend

6h · 2 stations

PM2.55.49 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (24 stations within 25 km)

5.49

Median

5.71

Average

3.1

Low

12.1

High

PM2.5 µg/m³ · Model: 6.15 · Bias: +0.7

What is the 7-day forecast for Iruma?

09-05

24.8° 19.7°

36.81 mm

09-06

26.7° 20.5°

4.44 mm

09-07

28.1° 21.2°

4.25 mm

09-08

26.7° 20.1°

4.19 mm

09-09

24.5° 20.5°

7.44 mm

09-10

24.1° 22.2°

1.75 mm

09-11

29.0° 21.9°

0.31 mm

Both models agree Avg diff: 2.5°C

Where are air quality stations near Iruma?

Azumacho, Iruma, Saitama, Japan (入間入間市)

3.0 km PM2.5: 4.1 µg/m³

Azumacho, Iruma, Saitama, Japan (入間入間市)

3.0 km PM2.5: 5.0 µg/m³

Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)

5.7 km PM2.5: 5.0 µg/m³

Nakakayama, Hidaka, Saitama, Japan (日高日高市)

8.6 km PM2.5: 3.1 µg/m³

Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)

8.6 km PM2.5: 7.0 µg/m³

Higashioume, Oume, Tokyo, Japan (青梅市東青梅青梅市)

8.9 km PM2.5: 12.1 µg/m³

Tokorozawa (所沢)

9.3 km PM2.5: 7.9 µg/m³

Honcho, Higashimurayama, Tokyo, Japan (新青梅街道東村山東村山市)

11.9 km PM2.5: 2.2 µg/m³

Iseharachō, Kawagoe-shi, Saitama-ken, Japan (川越市霞ケ関川越市)

12.7 km PM2.5: 5.3 µg/m³

Sunashinden, Kawagoe-shi, Saitama-ken, Japan (川越市高階川越市)

13.4 km PM2.5: 5.0 µg/m³

What cities are near Iruma?

22 Sayama 22 Hakonegasaki 23 Hannō 25 Hamura 24 Yokota 26 Higashiyamato 33 Tokorozawa 25 Fussa 24 Musashimurayama 24 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 2026-09-05T10:26 UTC.