Air Quality in Sayō, Japan

Windy
27.5°C · 82.4% humidity
27.5°
Feels 33.5°
99
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast
34 7am
34
34
99 10am
81
67
58 1pm
51
46
43 4pm
33
32
30 7pm
29
27
55 10pm
55
55
54 1am
54
54
54 4am
54
54
AD 728×90

Air Quality Index Trend

46h · 8 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 2.3× the WHO 24-hour guideline of 15 µg/m³.

82.4%
Humidity
81.1 km/h
Wind SE
997.5 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
99
34.9 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Sayō?

Temperature & Precipitation

PM2.5 Trend

46h · 8 stations
PM2.534.9 µg/m³ ×2.3 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (1 station within 25 km)
34.9
Median
34.9
Average
34.9
Low
34.9
High
PM2.5 µg/m³ · Model: 13.7 · Bias: -21.2

What is the 7-day forecast for Sayō?

07-22
29.9° 21.7°
5.25 mm
07-23
26.2° 16.8°
2.12 mm
07-24
28.2° 23.2°
12.63 mm
07-25
29.1° 20.1°
4.69 mm
07-26
28.0° 22.5°
2.19 mm
07-27
31.0° 21.6°
1.31 mm
07-28
28.4° 24.1°
1.75 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Sayō?

19
Tatsunocho Tominaga, Tatsuno, Hyogo Prefecture, Japan (たつの市役所たつの市)
23.4 km PM2.5: 4.6 µg/m³
17
Mitsuishi, Bizen-shi, Okayama-ken, Japan (三石備前市)
23.5 km PM2.5: 4.1 µg/m³
74
Aioi, Hyogo Prefecture, Japan (池ノ内相生市)
24.3 km PM2.5: 23.0 µg/m³
17
Ikaruga, Hyogo Prefecture, Japan (太子町役場揖保郡太子町)
27.4 km PM2.5: 4.1 µg/m³
5
Aboshiku Kaichi Nakamachi, Himeji, Hyogo Prefecture, Japan (網干姫路市)
31.7 km PM2.5: 1.2 µg/m³
3
Aboshiku Kaichi Nakamachi, Himeji, Hyogo Prefecture, Japan (網干姫路市)
31.7 km PM2.5: 0.7 µg/m³
50
Hirohataku Seimondori, Himeji, Hyogo Prefecture, Japan (広畑姫路市)
33.0 km PM2.5: 12.0 µg/m³

What cities are near Sayō?

99 Kamigōri 56 Yamazakichō-nakabirose 56 Shisō 99 Hayashino 54 Tatsunochō-tominaga 68 Aioi 58 Tatsuno 99 Bizen 55 Ikaruga 99 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 2026-07-22T01:18 UTC.