Air Quality in Shiraoi, Japan
Cloudy
19.0°C · 89.3% humidity
19.0°
Feels 19.0°
63
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Shiraoi's air quality — share it
AQI Forecast
25
7am
25
25
63
10am
60
59
57
1pm
56
56
55
4pm
55
55
54
7pm
54
34
54
10pm
54
34
34
1am
34
27
27
4am
27
27
Air Quality Index Trend
36h · 3 stnShiraoi'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 Shiraoi is 1.2× the WHO 24-hour guideline of 15 µg/m³.
89.3%
Humidity
25.0 km/h
Wind SE
1008.2 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
17.8 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Shiraoi?
Temperature & Precipitation
PM2.5 Trend
36h · 3 stationsPM2.517.8 µg/m³
×1.2 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX19.9
Extreme
Station readings (1 station within 25 km)
17.8
Median
17.8
Average
17.8
Low
17.8
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -4.3
What is the 7-day forecast for Shiraoi?
07-22
20.2° 16.9°
0.13 mm
07-23
18.4° 15.3°
0.38 mm
07-24
19.2° 17.6°
0.62 mm
07-25
18.4° 16.5°
2.87 mm
07-26
19.9° 17.5°
0.06 mm
07-27
19.1° 17.2°
0.19 mm
07-28
21.4° 18.7°
6.06 mm
Both models agree
Avg diff: 1.9°C
Where are air quality stations near Shiraoi?
53
Nisshinchō, Tomakomai-shi, Hokkaidō, Japan (糸井苫小牧市)
21
Nisshinchō, Tomakomai-shi, Hokkaidō, Japan (糸井苫小牧市)
53
Nisshinchō, Tomakomai-shi, Hokkaidō, Japan (糸井苫小牧市)
What cities are near Shiraoi?
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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 2026-07-22T01:21 UTC.