Air Quality in Sayama, Japan

Partly Cloudy
26.4°C · 68.1% humidity
26.4°
Feels 26.4°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
19 10am
12
12
42 1pm
33
27
23 4pm
20
18
16 7pm
15
26
13 10pm
13
13
13 1am
12
12
12 4am
12
12
0 7am
0
0
Station readings
19
CAMS model adj -42
54
54
54
54
54
54
54
54
54
54
54
66
54
54
54
54
54
54
54
54
54
34
34
34
AD 728×90

Air Quality Index Trend

17h · 3 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.

68.1%
Humidity
24.7 km/h
Wind E
1009.4 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
42
10.09 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Sayama?

Temperature & Precipitation

PM2.5 Trend

17h · 3 stations
PM2.510.09 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (8 stations within 25 km)
10.09
Median
8.22
Average
2.4
Low
14.0
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -2.7

What is the 7-day forecast for Sayama?

08-03
28.2° 22.4°
9.5 mm
08-04
34.2° 25.8°
4.56 mm
08-05
32.3° 25.5°
1.81 mm
08-06
30.1° 26.8°
21.13 mm
08-07
36.2° 25.2°
11.69 mm
08-08
34.3° 26.5°
37.0 mm
08-09
35.6° 22.7°
1.25 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near Sayama?

34
Azumacho, Iruma, Saitama, Japan (入間入間市)
2.7 km PM2.5: 8.2 µg/m³
25
Azumacho, Iruma, Saitama, Japan (入間入間市)
2.7 km PM2.5: 6.0 µg/m³
7
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
7.5 km PM2.5: 1.7 µg/m³
33
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
7.5 km PM2.5: 7.9 µg/m³
38
Nakakayama, Hidaka, Saitama, Japan (日高日高市)
7.6 km PM2.5: 9.1 µg/m³
25
Tokorozawa (所沢)
7.8 km PM2.5: 6.0 µg/m³
65
Tokorozawa, Saitama, Japan (所沢市和ヶ原所沢市)
7.8 km PM2.5: 18.8 µg/m³
10
Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)
8.9 km PM2.5: 2.4 µg/m³
36
Miyashitamachi, Kawagoe, Saitama, Japan (川越市川越川越市)
10.7 km PM2.5: 8.6 µg/m³
34
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
11.1 km PM2.5: 8.2 µg/m³

What cities are near Sayama?

47 Iruma 29 Tokorozawa 50 Hidaka 55 Hannō 37 Kawagoe 38 Kamifukuoka 37 Ōi 25 Higashiyamato 36 Hakonegasaki 25 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 2026-08-08T04:49 UTC.