Air Quality in Kumagaya, Japan

Drizzle
22.7°C · 88.3% humidity
22.7°
Feels 22.7°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
16 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
30 5pm
30
32
24 8pm
26
26
27 11pm
28
28
29 2am
29
29
30 5am
30
30
30 8am
30
32
39 11am
39
32
32 2pm
32
39
Station readings 11h ago
AQI 17
PM2.5 4.1 µg/m³ · 11h ago
CAMS model adj +5
25
25
27
27
27
25
25
25
25
25
25
25
25
25
25
25
25
27
34
34
27
27
27
34
AD 728×90

Air Quality Index Trend

3h · 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.

88.3%
Humidity
42.1 km/h
Wind E
1010.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
24
5.73 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Kumagaya?

Temperature & Precipitation

PM2.5 Trend

3h · 1 station
PM2.55.73 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (16 stations within 25 km)
5.73
Median
5.62
Average
2.4
Low
9.1
High
PM2.5 µg/m³ · Model: 6.15 · Bias: +0.4

What is the 7-day forecast for Kumagaya?

09-05
27.7° 21.1°
15.06 mm
09-06
30.5° 22.4°
5.87 mm
09-07
30.8° 23.0°
3.88 mm
09-08
29.5° 21.9°
11.38 mm
09-09
26.4° 22.5°
3.38 mm
09-10
26.6° 23.2°
3.38 mm
09-11
32.1° 22.2°
12.56 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Kumagaya?

21
Miyacho, Kumagaya, Saitama, Japan (熊谷熊谷市)
1.4 km PM2.5: 5.0 µg/m³
24
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
9.5 km PM2.5: 5.8 µg/m³
22
Menumahigashi, Kumagaya-shi, Saitama-ken, Japan (熊谷妻沼東熊谷市)
9.8 km PM2.5: 5.3 µg/m³
22
Uwanodai, Fukaya, Saitama, Japan (深谷深谷市)
11.4 km PM2.5: 5.3 µg/m³
9
Chuo, Konosu, Saitama, Japan (鴻巣鴻巣市)
14.1 km PM2.5: 2.2 µg/m³
30
Raiha, Kazo-shi, Saitama-ken, Japan (加須加須市)
17.4 km PM2.5: 7.2 µg/m³
17
Iidacho, Ota, Gunma, Japan (太田市立中央小学校太田市)
17.4 km PM2.5: 4.1 µg/m³
13
Iidacho, Ota, Gunma, Japan (太田市立中央小学校太田市)
17.4 km PM2.5: 3.1 µg/m³
9
Iidacho, Ota, Gunma, Japan (太田市立中央小学校太田市)
17.4 km PM2.5: 2.2 µg/m³
5
Iidacho, Ota, Gunma, Japan (太田市立中央小学校太田市)
17.4 km PM2.5: 1.2 µg/m³

What cities are near Kumagaya?

27 Yamata 11 Gyōda 24 Fukiage-fujimi 23 Menuma 24 Ranzan 34 Higashi-Matsuyama 23 Ōwa 20 Fukayachō 25 Hanyū 37 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 2026-09-05T11:16 UTC.