Air Quality in Hannō, Japan

Windy
21.0°C · 73.3% humidity
21.0°
Feels 21.0°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
26 stations

Nearby Monitoring Stations

AQI Forecast
54 3am
54
54
32 6am
38
43
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

Hannō'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 Hannō 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▲
32
7.62 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Hannō?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.57.62 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (26 stations within 25 km)
7.62
Median
7.47
Average
0.2
Low
13.1
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +2.4

What is the 7-day forecast for Hannō?

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 Hannō?

31
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
1.1 km PM2.5: 7.4 µg/m³
55
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
1.1 km PM2.5: 14.0 µg/m³
34
Azumacho, Iruma, Saitama, Japan (入間入間市)
7.5 km PM2.5: 8.2 µg/m³
25
Higashioume, Oume, Tokyo, Japan (青梅市東青梅青梅市)
8.2 km PM2.5: 6.0 µg/m³
12
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
9.1 km PM2.5: 2.9 µg/m³
42
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.1 km PM2.5: 10.1 µg/m³
39
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.1 km PM2.5: 9.4 µg/m³
30
Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)
11.5 km PM2.5: 7.2 µg/m³
30
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
11.9 km PM2.5: 7.2 µg/m³
46
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
11.9 km PM2.5: 11.0 µg/m³

What cities are near Hannō?

31 Iruma 35 Hidaka 35 Sayama 35 Morohongō 28 Hakonegasaki 25 Hamura 21 Ōme 29 Yokota 25 Fussa 33 Sakado
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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 2026-05-28T21:36 UTC.