Air Quality in Kumagaya, Japan

Partly Cloudy
22.5°C · 64.9% humidity
22.5°
Feels 22.5°
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
12 stations

Nearby Monitoring Stations

AQI Forecast
54 3am
54
54
31 6am
38
42
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

47h · 51 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. Current PM2.5 concentration in Kumagaya is 1.5× the WHO annual guideline of 5 µg/m³.

64.9%
Humidity
16.8 km/h
Wind NNE
997.1 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
31
7.48 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Kumagaya?

Temperature & Precipitation

PM2.5 Trend

47h · 51 stations
PM2.57.48 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (12 stations within 25 km)
7.48
Median
8.05
Average
4.1
Low
14.0
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +6.0

What is the 7-day forecast for Kumagaya?

05-28
34.7° 16.5°
1.44 mm
05-29
25.8° 20.2°
2.5 mm
05-30
25.6° 17.5°
1.19 mm
05-31
27.7° 20.4°
0.13 mm
06-01
28.9° 21.0°
06-02
28.1° 19.8°
06-03
29.6° 23.0°
0.25 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Kumagaya?

25
Nagano, Gyōda-shi, Saitama-ken, Japan (行田行田市)
7.1 km PM2.5: 6.0 µg/m³
40
Nagano, Gyōda-shi, Saitama-ken, Japan (行田行田市)
7.1 km PM2.5: 9.6 µg/m³
40
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
9.5 km PM2.5: 9.6 µg/m³
30
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
9.5 km PM2.5: 7.2 µg/m³
33
Menumahigashi, Kumagaya-shi, Saitama-ken, Japan (熊谷妻沼東熊谷市)
9.8 km PM2.5: 7.9 µg/m³
10
Menumahigashi, Kumagaya-shi, Saitama-ken, Japan (熊谷妻沼東熊谷市)
9.8 km PM2.5: 2.4 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
30
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
11.8 km PM2.5: 7.2 µg/m³
13
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
11.8 km PM2.5: 3.1 µg/m³
11
Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)
14.3 km PM2.5: 2.6 µg/m³

What cities are near Kumagaya?

33 Yamata 30 Gyōda 30 Fukiage-fujimi 33 Menuma 36 Ranzan 30 Higashi-Matsuyama 25 Ōwa 42 Fukayachō 27 Hanyū 25 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 2026-05-28T21:38 UTC.