Air Quality in Sayama, Japan

Cloudy
21.5°C · 71.7% humidity
21.5°
Feels 21.5°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
33 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
31 8am
19
19
19 11am
19
19
19 2pm
19
19
19 5pm
19
31
31 8pm
31
31
31 11pm
19
19
19 2am
19
0
0 5am
0
0
Station readings
4
4
CAMS model adj -35
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

37h · 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▲
19
4.64 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Sayama?

Temperature & Precipitation

PM2.5 Trend

37h · 1 station
PM2.54.64 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (33 stations within 25 km)
4.64
Median
4.45
Average
1.0
Low
11.0
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +5.4

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?

27
Azumacho, Iruma, Saitama, Japan (入間入間市)
2.7 km PM2.5: 6.5 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
32
Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)
8.9 km PM2.5: 7.7 µg/m³

What cities are near Sayama?

21 Iruma 27 Tokorozawa 21 Hidaka 42 Hannō 14 Kawagoe 18 Kamifukuoka 17 Ōi 19 Higashiyamato 19 Hakonegasaki 20 Akitsu
Get AQI alerts for Sayama

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:17 UTC.