Air Quality in Yoichi, Japan
Cloudy
22.3°C · 77.5% humidity
22.3°
Feels 22.3°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Yoichi's air quality — share it
AQI Forecast
25
7am
25
25
21
10am
23
24
25
1pm
23
24
24
4pm
24
25
25
7pm
25
25
25
10pm
25
25
25
1am
27
27
27
4am
27
27
Air Quality Index Trend
40h · 1 stnYoichi'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.
77.5%
Humidity
33.9 km/h
Wind ESE
1006.0 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Yoichi?
Temperature & Precipitation
PM2.5 Trend
40h · 1 stationPM2.55.0 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
Station readings (1 station within 25 km)
5.0
Median
5.0
Average
5.0
Low
5.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.2
What is the 7-day forecast for Yoichi?
07-22
24.8° 18.1°
0.25 mm
07-23
21.4° 17.1°
0.94 mm
07-24
22.6° 17.8°
07-25
22.8° 18.4°
3.81 mm
07-26
21.2° 17.9°
0.5 mm
07-27
22.5° 18.4°
0.25 mm
07-28
21.8° 19.1°
12.69 mm
Both models agree
Avg diff: 2.3°C
Where are air quality stations near Yoichi?
85
Katsunaichō, Otaru-shi, Hokkaidō, Japan (勝納小樽市)
57
Katsunaichō, Otaru-shi, Hokkaidō, Japan (勝納小樽市)
91
Katsunaichō, Otaru-shi, Hokkaidō, Japan (勝納小樽市)
65
Katsunaichō, Otaru-shi, Hokkaidō, Japan (勝納小樽市)
What cities are near Yoichi?
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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 2026-07-22T01:11 UTC.