Air Quality in Yorii, Japan

Partly Cloudy
21.2°C · 61.8% humidity
21.2°
Feels 21.2°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
11 stations

Nearby Monitoring Stations

AQI Forecast
25 6am
25
25
21 9am
25
25
25 12pm
25
25
27 3pm
34
34
54 6pm
54
54
66 9pm
66
83
83 12am
66
66
66 3am
54
66
AD 728×90

Air Quality Index Trend

47h · 40 stn

Yorii'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.

61.8%
Humidity
6.5 km/h
Wind ENE
1015.4 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
21
5.09 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Yorii?

Temperature & Precipitation

PM2.5 Trend

47h · 40 stations
PM2.55.09 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (11 stations within 25 km)
5.09
Median
4.75
Average
1.4
Low
7.7
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +2.0

What is the 7-day forecast for Yorii?

06-09
23.3° 20.8°
0.19 mm
06-10
26.5° 17.8°
14.12 mm
06-11
27.0° 17.4°
2.06 mm
06-12
24.7° 19.3°
0.81 mm
06-13
32.8° 20.8°
0.19 mm
06-14
30.0° 17.5°
7.44 mm
06-15
27.3° 18.4°
1.31 mm
Both models agree Avg diff: 3.3°C

Where are air quality stations near Yorii?

53
Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)
8.7 km PM2.5: 13.1 µg/m³
29
Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)
8.7 km PM2.5: 7.0 µg/m³
63
Minano, Saitama-ken, Japan (皆野秩父郡皆野町)
9.9 km PM2.5: 17.8 µg/m³
18
Shiroishi, Saitama Prefecture, Japan (東秩父秩父郡東秩父村)
11.0 km PM2.5: 4.3 µg/m³
25
Kodamachō Takazeki, Honjō-shi, Saitama-ken, Japan (本庄児玉本庄市)
11.8 km PM2.5: 6.0 µg/m³
32
Kodamachō Takazeki, Honjō-shi, Saitama-ken, Japan (本庄児玉本庄市)
11.8 km PM2.5: 7.7 µg/m³
29
Haragō, Fukaya-shi, Saitama-ken, Japan (深谷原郷自排深谷市)
12.6 km PM2.5: 7.0 µg/m³
31
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
20.6 km PM2.5: 7.4 µg/m³
72
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
20.6 km PM2.5: 22.1 µg/m³
30
Menumahigashi, Kumagaya-shi, Saitama-ken, Japan (熊谷妻沼東熊谷市)
20.6 km PM2.5: 7.2 µg/m³

What cities are near Yorii?

23 Ogawamachi 26 Kodamachō-kodamaminami 12 Fukayachō 20 Ranzan 28 Honjō 28 Ishigami 17 Yamata 26 Chichibu 19 Sakai-nakajima 15 Kumagaya
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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 2026-06-09T00:51 UTC.