Air Quality in Kumagaya, Japan

Drizzle
23.3°C · 87.8% humidity
23.3°
Feels 23.3°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
19 stations

Nearby Monitoring Stations

AQI Forecast
34 5am
27
27
54 8am
46
41
37 11am
34
32
38 2pm
37
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 · 13 stn

Kumagaya'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.

87.8%
Humidity
10.1 km/h
Wind W
1002.7 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
54
13.44 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Kumagaya?

Temperature & Precipitation

PM2.5 Trend

47h · 13 stations
PM2.513.44 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
Station readings (19 stations within 25 km)
13.44
Median
10.36
Average
1.2
Low
18.8
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -3.4

What is the 7-day forecast for Kumagaya?

07-21
32.7° 21.6°
8.25 mm
07-22
29.9° 23.3°
2.0 mm
07-23
27.1° 20.9°
1.94 mm
07-24
30.4° 24.6°
0.94 mm
07-25
36.8° 24.1°
0.06 mm
07-26
33.0° 24.9°
0.19 mm
07-27
32.9° 23.9°
11.81 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Kumagaya?

4
Nagano, Gyōda-shi, Saitama-ken, Japan (行田行田市)
7.1 km PM2.5: 1.0 µg/m³
25
Nagano, Gyōda-shi, Saitama-ken, Japan (行田行田市)
7.1 km PM2.5: 6.0 µg/m³
11
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
9.5 km PM2.5: 2.6 µg/m³
17
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
9.5 km PM2.5: 4.1 µg/m³
7
Menumahigashi, Kumagaya-shi, Saitama-ken, Japan (熊谷妻沼東熊谷市)
9.8 km PM2.5: 1.7 µg/m³
21
Menumahigashi, Kumagaya-shi, Saitama-ken, Japan (熊谷妻沼東熊谷市)
9.8 km PM2.5: 5.0 µg/m³
21
Haragō, Fukaya-shi, Saitama-ken, Japan (深谷原郷自排深谷市)
11.2 km PM2.5: 5.0 µg/m³
17
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
11.8 km PM2.5: 4.1 µg/m³
26
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
11.8 km PM2.5: 6.2 µg/m³
53
Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)
14.3 km PM2.5: 13.1 µg/m³

What cities are near Kumagaya?

53 Yamata 64 Gyōda 55 Fukiage-fujimi 55 Menuma 40 Ranzan 56 Higashi-Matsuyama 55 Ōwa 63 Fukayachō 52 Hanyū 51 Kōnosu
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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 2026-07-21T23:17 UTC.