Air Quality in Rittō, Japan

Heavy Rain
20.3°C · 77.8% humidity
20.3°
Feels 20.3°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
16 stations

Nearby Monitoring Stations

AQI Forecast
25 3am
27
27
23 6am
34
34
34 9am
54
66
66 12pm
66
66
54 3pm
54
34
34 6pm
34
34
34 9pm
27
27
27 12am
27
27
AD 728×90

Air Quality Index Trend

47h · 58 stn

Rittō'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 Rittō is 1.1× the WHO annual guideline of 5 µg/m³.

77.8%
Humidity
99.9 km/h
Wind SSE
999.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
23
5.6 µg/m³
PM10▲
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Rittō?

Temperature & Precipitation

PM2.5 Trend

47h · 58 stations
PM2.55.6 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (16 stations within 25 km)
5.6
Median
6.34
Average
2.4
Low
9.1
High
PM2.5 µg/m³ · Model: 12.85 · Bias: +7.2

What is the 7-day forecast for Rittō?

05-28
24.3° 12.2°
12.44 mm
05-29
20.3° 17.0°
25.56 mm
05-30
23.6° 16.9°
1.31 mm
05-31
23.7° 18.2°
06-01
28.0° 17.8°
06-02
24.5° 17.9°
0.31 mm
06-03
25.9° 17.3°
1.19 mm
Both models agree Avg diff: 2.5°C

Where are air quality stations near Rittō?

13
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
3.9 km PM2.5: 3.1 µg/m³
5
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
3.9 km PM2.5: 1.2 µg/m³
38
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
3.9 km PM2.5: 9.1 µg/m³
27
Moriyama, Moriyama, Shiga, Japan (守山守山市)
4.2 km PM2.5: 6.5 µg/m³
39
Kusatsucho, Kusatsu, Shiga, Japan (草津草津市)
4.5 km PM2.5: 9.4 µg/m³
17
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
11.5 km PM2.5: 4.1 µg/m³
30
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
11.5 km PM2.5: 7.2 µg/m³
34
Honkatata, Otsu, Shiga, Japan (堅田大津市)
12.1 km PM2.5: 8.2 µg/m³
42
Honkatata, Otsu, Shiga, Japan (堅田大津市)
12.1 km PM2.5: 10.1 µg/m³
17
Otowadai, Otsu, Shiga, Japan (逢坂大津市)
12.6 km PM2.5: 4.1 µg/m³

What cities are near Rittō?

17 Kusatsu 28 Moriyama 26 Yasu 26 Konan 21 Ōtsu 38 Ōmihachiman 28 Kōka 28 Minakuchichō-matoba 18 Kitahama 32 Youkaichi
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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 2026-05-28T21:35 UTC.