Air Quality in Hannō, Japan
Cloudy
20.2°C · 74.0% humidity
20.2°
Feels 20.2°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
30 stations
Nearby Monitoring Stations
AQI Forecast
25
8am
25
25
42
11am
37
34
31
2pm
31
37
36
5pm
56
55
55
8pm
67
66
83
11pm
83
66
66
2am
66
54
66
5am
66
66
Air Quality Index Trend
48h · 1 stnHannō'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.
74.0%
Humidity
12.8 km/h
Wind E
1015.7 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
10.2 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Hannō?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.510.2 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
Station readings (30 stations within 25 km)
10.2
Median
4.46
Average
1.0
Low
11.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -4.0
What is the 7-day forecast for Hannō?
06-09
21.8° 19.3°
0.44 mm
06-10
24.9° 16.2°
7.13 mm
06-11
24.6° 17.8°
0.38 mm
06-12
23.7° 17.5°
2.0 mm
06-13
29.2° 18.4°
2.0 mm
06-14
27.1° 17.2°
41.75 mm
06-15
26.4° 19.1°
8.06 mm
Both models agree
Avg diff: 2.1°C
Where are air quality stations near Hannō?
26
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
60
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
27
Azumacho, Iruma, Saitama, Japan (入間入間市)
25
Higashioume, Oume, Tokyo, Japan (青梅市東青梅青梅市)
58
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
15
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
50
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
32
Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)
60
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
25
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
What cities are near Hannō?
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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 2026-06-09T02:17 UTC.