Air Quality in Sayama, Japan

Windy
19.9°C · 75.1% humidity
19.9°
Feels 19.9°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
38 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
9 2am
9
9
30 5am
26
22
26 8am
24
42
41 11am
40
39
39 2pm
39
39
38 5pm
38
38
38 8pm
38
38
50 11pm
50
50
Station readings
17
10
18
CAMS model adj -16
25
25
25
25
27
27
34
34
54
54
54
54
54
54
54
54
54
54
54
54
54
66
66
66
AD 728×90

Air Quality Index Trend

25h · 1 stn

Sayama'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.

75.1%
Humidity
52.0 km/h
Wind S
1020.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
30
7.25 µg/m³
PM10▲
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Sayama?

Temperature & Precipitation

PM2.5 Trend

25h · 1 station
PM2.57.25 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (38 stations within 25 km)
7.25
Median
7.52
Average
1.2
Low
16.9
High
PM2.5 µg/m³ · Model: 12.6 · Bias: +5.3

What is the 7-day forecast for Sayama?

05-29
24.9° 19.9°
0.06 mm
05-30
24.8° 19.7°
0.44 mm
05-31
27.1° 20.3°
06-01
28.2° 21.4°
06-02
27.4° 20.8°
0.06 mm
06-03
28.1° 23.1°
0.06 mm
06-04
26.5° 18.8°
Both models agree Avg diff: 3.4°C

Where are air quality stations near Sayama?

30
Azumacho, Iruma, Saitama, Japan (入間入間市)
2.7 km PM2.5: 7.2 µg/m³
30
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
3.4 km PM2.5: 7.2 µg/m³
7
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
3.4 km PM2.5: 1.7 µg/m³
41
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
7.5 km PM2.5: 9.8 µg/m³
42
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
7.5 km PM2.5: 10.1 µg/m³
26
Iseharachō, Kawagoe-shi, Saitama-ken, Japan (川越市霞ケ関川越市)
7.9 km PM2.5: 6.2 µg/m³
8
Iseharachō, Kawagoe-shi, Saitama-ken, Japan (川越市霞ケ関川越市)
7.9 km PM2.5: 1.9 µg/m³
12
Sunashinden, Kawagoe-shi, Saitama-ken, Japan (川越市高階川越市)
7.9 km PM2.5: 2.9 µg/m³
11
Sunashinden, Kawagoe-shi, Saitama-ken, Japan (川越市高階川越市)
7.9 km PM2.5: 2.6 µg/m³
61
Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)
8.9 km PM2.5: 16.9 µg/m³

What cities are near Sayama?

34 Iruma 38 Tokorozawa 34 Hidaka 43 Hannō 42 Kawagoe 32 Kamifukuoka 31 Ōi 32 Higashiyamato 30 Hakonegasaki 31 Akitsu
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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 2026-05-29T20:42 UTC.