Air Quality in Sayō, Japan

Heavy Rain
20.0°C · 78.3% humidity
20.0°
Feels 20.0°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast
34 6am
34
54
24 9am
36
44
51 12pm
43
46
48 3pm
50
51
32 6pm
33
33
33 9pm
33
34
34 12am
34
54
54 3am
34
27
AD 728×90

Air Quality Index Trend

47h · 17 stn

Sayō'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. Current PM2.5 concentration in Sayō is 1.1× the WHO annual guideline of 5 µg/m³.

78.3%
Humidity
29.4 km/h
Wind ESE
1001.0 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
24
5.66 µg/m³
PM10▲
76
104.9 µg/m³
050100150200300500

What is the weather forecast for Sayō?

Temperature & Precipitation

PM2.5 Trend

47h · 17 stations
PM2.55.66 µg/m³ ✓ WHO
Good
PM10104.9 µg/m³
Moderate
UV INDEX10.9
Extreme
AD 300×250
Station readings (3 stations within 25 km)
5.66
Median
5.67
Average
3.4
Low
7.4
High
PM2.5 µg/m³ · Model: 19.2 · Bias: +13.5

What is the 7-day forecast for Sayō?

05-29
20.0° 15.7°
15.63 mm
05-30
21.1° 16.4°
4.56 mm
05-31
22.4° 17.5°
06-01
24.7° 17.0°
0.06 mm
06-02
26.1° 16.6°
06-03
21.5° 17.0°
0.81 mm
06-04
25.7° 13.0°
1.81 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near Sayō?

10
Tatsunocho Tominaga, Tatsuno, Hyogo Prefecture, Japan (たつの市役所たつの市)
23.4 km PM2.5: 2.4 µg/m³
34
Mitsuishi, Bizen-shi, Okayama-ken, Japan (三石備前市)
23.5 km PM2.5: 8.2 µg/m³
53
Aioi, Hyogo Prefecture, Japan (池ノ内相生市)
24.3 km PM2.5: 13.1 µg/m³
20
Ikaruga, Hyogo Prefecture, Japan (太子町役場揖保郡太子町)
27.4 km PM2.5: 4.8 µg/m³
34
Aboshiku Kaichi Nakamachi, Himeji, Hyogo Prefecture, Japan (網干姫路市)
31.7 km PM2.5: 8.2 µg/m³
21
Aboshiku Kaichi Nakamachi, Himeji, Hyogo Prefecture, Japan (網干姫路市)
31.7 km PM2.5: 5.0 µg/m³
34
Hirohataku Seimondori, Himeji, Hyogo Prefecture, Japan (広畑姫路市)
33.0 km PM2.5: 8.2 µg/m³

What cities are near Sayō?

25 Kamigōri 28 Yamazakichō-nakabirose 30 Shisō 28 Hayashino 29 Tatsunochō-tominaga 26 Aioi 29 Tatsuno 23 Bizen 28 Ikaruga 25 Kariya
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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 2026-05-29T00:11 UTC.