Air Quality in Hannō, Japan

Drizzle
22.3°C · 88.6% humidity
22.3°
Feels 22.3°
50
Good
Air quality is satisfactory. Enjoy outdoor activities.
25 stations

Nearby Monitoring Stations

AQI Forecast
34 5am
27
27
50 8am
43
39
35 11am
33
31
37 2pm
36
36
55 5pm
55
35
54 8pm
54
54
54 11pm
54
54
54 2am
54
54
AD 728×90

Air Quality Index Trend

47h · 10 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.

88.6%
Humidity
15.9 km/h
Wind N
1003.2 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
50
11.87 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Hannō?

Temperature & Precipitation

PM2.5 Trend

47h · 10 stations
PM2.511.87 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (25 stations within 25 km)
11.87
Median
13.54
Average
1.9
Low
26.8
High
PM2.5 µg/m³ · Model: 12.85 · Bias: +1.0

What is the 7-day forecast for Hannō?

07-21
30.4° 20.4°
14.0 mm
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
Both models agree Avg diff: 3.2°C

Where are air quality stations near Hannō?

10
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
1.1 km PM2.5: 2.4 µg/m³
10
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
1.1 km PM2.5: 2.4 µg/m³
28
Azumacho, Iruma, Saitama, Japan (入間入間市)
7.5 km PM2.5: 6.7 µg/m³
21
Higashioume, Oume, Tokyo, Japan (青梅市東青梅青梅市)
8.2 km PM2.5: 5.0 µg/m³
36
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
9.1 km PM2.5: 8.6 µg/m³
51
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.1 km PM2.5: 12.1 µg/m³
30
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.1 km PM2.5: 7.2 µg/m³
21
Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)
11.5 km PM2.5: 5.0 µg/m³
40
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
11.9 km PM2.5: 9.6 µg/m³
39
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
11.9 km PM2.5: 9.4 µg/m³

What cities are near Hannō?

55 Iruma 40 Hidaka 58 Sayama 38 Morohongō 57 Hakonegasaki 58 Hamura 57 Ōme 57 Yokota 61 Fussa 48 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 2026-07-21T23:16 UTC.