Air Quality in Yasu, Japan

Heavy Rain
18.2°C · 87.5% humidity
18.2°
Feels 18.2°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
14 stations

Nearby Monitoring Stations

AQI Forecast
27 6am
34
34
27 9am
49
62
63 12pm
64
65
53 3pm
53
34
34 6pm
34
34
34 9pm
27
27
27 12am
27
27
34 3am
34
34
AD 728×90

Air Quality Index Trend

47h · 51 stn

Yasu'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 Yasu is 1.3× the WHO annual guideline of 5 µg/m³.

87.5%
Humidity
85.2 km/h
Wind S
998.8 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
27
6.52 µg/m³
PM10▲
56
66.15 µg/m³
050100150200300500

What is the weather forecast for Yasu?

Temperature & Precipitation

PM2.5 Trend

47h · 51 stations
PM2.56.52 µg/m³ ✓ WHO
Good
PM1066.15 µg/m³
Moderate
UV INDEX10.9
Extreme
AD 300×250
Station readings (14 stations within 25 km)
6.52
Median
7.22
Average
4.1
Low
12.0
High
PM2.5 µg/m³ · Model: 13.7 · Bias: +7.2

What is the 7-day forecast for Yasu?

05-29
20.2° 16.9°
25.69 mm
05-30
21.8° 16.8°
3.38 mm
05-31
22.5° 18.0°
06-01
23.7° 17.6°
06-02
22.5° 17.7°
0.06 mm
06-03
22.7° 17.5°
1.13 mm
06-04
23.1° 15.2°
1.25 mm
Both models agree Avg diff: 3.0°C

Where are air quality stations near Yasu?

37
Moriyama, Moriyama, Shiga, Japan (守山守山市)
5.1 km PM2.5: 8.9 µg/m³
30
Honkatata, Otsu, Shiga, Japan (堅田大津市)
9.1 km PM2.5: 7.2 µg/m³
21
Honkatata, Otsu, Shiga, Japan (堅田大津市)
9.1 km PM2.5: 5.0 µg/m³
46
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
11.1 km PM2.5: 11.0 µg/m³
38
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
11.1 km PM2.5: 9.1 µg/m³
55
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
11.1 km PM2.5: 14.0 µg/m³
31
Kusatsucho, Kusatsu, Shiga, Japan (草津草津市)
11.2 km PM2.5: 7.4 µg/m³
42
Kasugacho, Higashiomi, Shiga, Japan (東近江東近江市)
17.0 km PM2.5: 10.1 µg/m³
30
Kasugacho, Higashiomi, Shiga, Japan (東近江東近江市)
17.0 km PM2.5: 7.2 µg/m³
34
Otowadai, Otsu, Shiga, Japan (逢坂大津市)
17.7 km PM2.5: 8.2 µg/m³

What cities are near Yasu?

25 Moriyama 34 Ōmihachiman 26 Rittō 22 Kusatsu 28 Kitahama 28 Konan 20 Youkaichi 36 Ōtsu 25 Echigawa 30 Kōka
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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.