Air Quality in Kumagaya, Japan

Cloudy
26.0°C · 73.1% humidity
26.0°
Feels 26.0°
47
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
26 6am
26
6
47 9am
55
47
41 12pm
37
34
32 3pm
30
29
28 6pm
27
27
27 9pm
27
26
26 12am
26
26
26 3am
26
26
Station readings 7h ago
AQI 17
PM2.5 4.1 µg/m³ · 7h ago
CAMS model adj -28
54
54
34
34
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

5h · 1 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.

73.1%
Humidity
31.9 km/h
Wind ESE
1009.4 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
47
11.3 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Kumagaya?

Temperature & Precipitation

PM2.5 Trend

5h · 1 station
PM2.511.3 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (3 stations within 25 km)
11.3
Median
11.67
Average
6.0
Low
15.0
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +2.2

What is the 7-day forecast for Kumagaya?

08-03
27.3° 22.4°
9.69 mm
08-04
35.3° 24.8°
2.63 mm
08-05
33.4° 24.7°
2.69 mm
08-06
29.9° 25.2°
26.94 mm
08-07
38.1° 24.7°
21.75 mm
08-08
34.8° 25.9°
55.44 mm
08-09
35.7° 21.9°
1.31 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Kumagaya?

17
Miyacho, Kumagaya, Saitama, Japan (熊谷熊谷市)
1.4 km PM2.5: 4.1 µg/m³
17
Miyacho, Kumagaya, Saitama, Japan (熊谷熊谷市)
1.4 km PM2.5: 4.1 µg/m³
15
Nagano, Gyōda-shi, Saitama-ken, Japan (行田行田市)
7.1 km PM2.5: 3.6 µg/m³
20
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
9.5 km PM2.5: 4.8 µg/m³
50
Haragō, Fukaya-shi, Saitama-ken, Japan (深谷原郷自排深谷市)
11.2 km PM2.5: 12.0 µg/m³
25
Chuo, Konosu, Saitama, Japan (鴻巣鴻巣市)
14.1 km PM2.5: 6.0 µg/m³
9
Kamitanadare, Kazo-shi, Saitama-ken, Japan (環境科学国際センター加須市)
16.3 km PM2.5: 2.2 µg/m³
15
Sakurazawa, Saitama Prefecture, Japan (寄居桜沢自排大里郡寄居町)
17.2 km PM2.5: 3.6 µg/m³
18
Raiha, Kazo-shi, Saitama-ken, Japan (加須加須市)
17.4 km PM2.5: 4.3 µg/m³
24
Iidacho, Ota, Gunma, Japan (太田市立中央小学校太田市)
17.4 km PM2.5: 5.8 µg/m³

What cities are near Kumagaya?

47 Yamata 52 Gyōda 51 Fukiage-fujimi 33 Menuma 51 Ranzan 51 Higashi-Matsuyama 44 Ōwa 45 Fukayachō 54 Hanyū 52 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 2026-08-08T00:57 UTC.