What is the air quality in Sayama today?

The current Air Quality Index (AQI) in Sayama is 37 (Good). PM2.5 concentration is 8.86 µg/m³.

What is the temperature in Sayama right now?

The current temperature in Sayama is 15.3°C (feels like 15.3°C). Humidity is 75.2% and wind speed is 39.3 km/h.

Is it safe to go outside in Sayama?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Sayama, Japan

Drizzle

15.3°C · 75.2% humidity

15.3°

Feels 15.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

26 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings 6h ago

AQI 69

PM2.5 20.6 µg/m³ · 6h ago

Air Quality Index Trend

41h · 1 stn

View full history →

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.

75.2%

Humidity

39.3 km/h

Wind N

1021.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.86 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Sayama?

Temperature & Precipitation

PM2.5 Trend

41h · 1 station

PM2.58.86 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (26 stations within 25 km)

8.86

Median

7.75

Average

2.9

Low

21.1

High

PM2.5 µg/m³ · Model: 5.8 · Bias: -3.1

What is the 7-day forecast for Sayama?

10-21

21.6° 15.3°

0.75 mm

10-22

23.3° 18.1°

0.06 mm

10-23

22.5° 15.7°

10-24

21.9° 16.8°

0.94 mm

10-25

19.8° 14.2°

5.63 mm

10-26

20.7° 15.0°

10-27

19.2° 15.1°

0.25 mm

Both models agree Avg diff: 3.0°C

Where are air quality stations near Sayama?

Azumacho, Iruma, Saitama, Japan (入間入間市)

2.7 km PM2.5: 15.0 µg/m³

Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)

3.4 km PM2.5: 5.0 µg/m³

Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)

8.9 km PM2.5: 4.3 µg/m³

Senbamachi, Kawagoe, Saitama, Japan (川越市仙波川越市)

9.4 km PM2.5: 21.1 µg/m³

Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)

11.1 km PM2.5: 23.0 µg/m³

Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)

11.1 km PM2.5: 15.9 µg/m³

Higashitokorozawa, Tokorozawa, Saitama, Japan (所沢市東所沢所沢市)

11.2 km PM2.5: 3.6 µg/m³

Honcho, Higashimurayama, Tokyo, Japan (新青梅街道東村山東村山市)

12.6 km PM2.5: 6.0 µg/m³

Kamikiyoto, Kiyose, Tokyo, Japan (清瀬市上清戸清瀬市)

13.2 km PM2.5: 5.0 µg/m³

Ashiyamachō, Sakado-shi, Saitama-ken, Japan (坂戸坂戸市)

13.2 km PM2.5: 16.9 µg/m³

What cities are near Sayama?

39 Iruma 27 Tokorozawa 32 Hidaka 39 Hannō 69 Kawagoe 49 Kamifukuoka 35 Ōi 26 Higashiyamato 57 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 2026-10-21T05:27 UTC.