Air Quality in Sayama, Japan

Cloudy
21.5°C · 71.7% humidity
21.5°
Feels 21.5°
10
Good
Air quality is satisfactory. Enjoy outdoor activities.
15 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
35 8am
23
23
10 11am
14
16
18 2pm
20
21
21 5pm
22
34
34 8pm
35
35
35 11pm
23
23
23 2am
23
3
0 5am
0
0
Station readings
4
CAMS model adj -31
66
54
54
54
54
54
54
54
54
54
54
66
66
66
66
66
54
54
54
54
34
27
25
27
AD 728×90

Air Quality Index Trend

36h · 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.

71.7%
Humidity
29.8 km/h
Wind S
1015.4 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
10
2.4 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Sayama?

Temperature & Precipitation

PM2.5 Trend

36h · 1 station
PM2.52.4 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (15 stations within 25 km)
2.4
Median
3.4
Average
1.0
Low
8.2
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +7.6

What is the 7-day forecast for Sayama?

06-09
23.3° 21.5°
0.13 mm
06-10
28.6° 19.0°
3.81 mm
06-11
26.3° 19.7°
0.38 mm
06-12
24.3° 19.6°
1.0 mm
06-13
30.7° 21.4°
3.69 mm
06-14
29.7° 18.3°
39.69 mm
06-15
27.2° 21.0°
12.0 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Sayama?

32
Azumacho, Iruma, Saitama, Japan (入間入間市)
2.7 km PM2.5: 7.7 µg/m³
25
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
3.4 km PM2.5: 6.0 µg/m³
60
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
3.4 km PM2.5: 16.4 µg/m³
60
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
7.5 km PM2.5: 16.4 µg/m³
26
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
7.5 km PM2.5: 6.2 µg/m³
38
Iseharachō, Kawagoe-shi, Saitama-ken, Japan (川越市霞ケ関川越市)
7.9 km PM2.5: 9.1 µg/m³
13
Iseharachō, Kawagoe-shi, Saitama-ken, Japan (川越市霞ケ関川越市)
7.9 km PM2.5: 3.1 µg/m³
21
Sunashinden, Kawagoe-shi, Saitama-ken, Japan (川越市高階川越市)
7.9 km PM2.5: 5.0 µg/m³
69
Sunashinden, Kawagoe-shi, Saitama-ken, Japan (川越市高階川越市)
7.9 km PM2.5: 20.7 µg/m³
29
Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)
8.9 km PM2.5: 7.0 µg/m³

What cities are near Sayama?

10 Iruma 14 Tokorozawa 8 Hidaka 11 Hannō 10 Kawagoe 13 Kamifukuoka 14 Ōi 12 Higashiyamato 13 Hakonegasaki 14 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 2026-06-09T02:12 UTC.