Air Quality in Kusatsu, Japan

Cloudy
19.4°C · 74.3% humidity
19.4°
Feels 19.4°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast
34 8am
34
25
20 11am
21
22
23 2pm
24
24
24 5pm
25
25
27 8pm
27
34
34 11pm
54
54
54 2am
54
54
34 5am
34
34
AD 728×90

Air Quality Index Trend

47h · 45 stn

Kusatsu'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.

74.3%
Humidity
10.2 km/h
Wind ENE
1015.4 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.8 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Kusatsu?

Temperature & Precipitation

PM2.5 Trend

47h · 45 stations
PM2.54.8 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (9 stations within 25 km)
4.8
Median
5.29
Average
2.2
Low
8.6
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +1.2

What is the 7-day forecast for Kusatsu?

06-09
24.8° 19.4°
1.69 mm
06-10
22.0° 16.5°
12.56 mm
06-11
28.3° 17.7°
06-12
22.3° 19.6°
0.19 mm
06-13
29.2° 19.0°
06-14
25.4° 19.2°
0.88 mm
06-15
26.4° 17.7°
2.38 mm
Both models agree Avg diff: 1.9°C

Where are air quality stations near Kusatsu?

26
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
0.7 km PM2.5: 6.2 µg/m³
34
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
0.7 km PM2.5: 8.2 µg/m³
17
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
0.7 km PM2.5: 4.1 µg/m³
5
Kusatsucho, Kusatsu, Shiga, Japan (草津草津市)
1.3 km PM2.5: 1.2 µg/m³
56
Moriyama, Moriyama, Shiga, Japan (守山守山市)
5.5 km PM2.5: 14.5 µg/m³
52
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
8.6 km PM2.5: 12.6 µg/m³
17
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
8.6 km PM2.5: 4.1 µg/m³
19
Otowadai, Otsu, Shiga, Japan (逢坂大津市)
9.4 km PM2.5: 4.6 µg/m³
42
Honkatata, Otsu, Shiga, Japan (堅田大津市)
11.7 km PM2.5: 10.1 µg/m³
18
Honkatata, Otsu, Shiga, Japan (堅田大津市)
11.7 km PM2.5: 4.3 µg/m³

What cities are near Kusatsu?

18 Rittō 19 Moriyama 21 Ōtsu 20 Yasu 17 Konan 17 Ōmihachiman 24 Kitahama 16 Kōka 16 Minakuchichō-matoba 26 Kamigyō-ku
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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 2026-06-09T02:04 UTC.