Air Quality in Rittō, Japan

Overcast
24.5°C · 96.0% humidity
24.5°
Feels 24.5°
72
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
8 8am
8
1
72 11am
52
37
27 2pm
27
21
18 5pm
15
13
12 8pm
11
10
9 11pm
9
29
28 2am
28
28
28 5am
28
28
Station readings 4h ago
AQI 8
PM2.5 1.9 µg/m³ · 4h ago
AD 728×90

Air Quality Index Trend

46h · 35 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 1.5× the WHO 24-hour guideline of 15 µg/m³.

96.0%
Humidity
33.5 km/h
Wind ESE
999.4 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
72
22.2 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Rittō?

Temperature & Precipitation

PM2.5 Trend

46h · 35 stations
PM2.522.2 µg/m³ ×1.5 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (8 stations within 25 km)
22.2
Median
22.39
Average
18.8
Low
24.9
High
PM2.5 µg/m³ · Model: 16.8 · Bias: -5.4

What is the 7-day forecast for Rittō?

07-22
28.4° 23.7°
1.44 mm
07-23
28.5° 19.8°
0.88 mm
07-24
28.0° 26.1°
2.44 mm
07-25
34.5° 22.9°
2.31 mm
07-26
31.6° 24.0°
2.75 mm
07-27
33.2° 23.4°
0.06 mm
07-28
30.3° 24.3°
0.69 mm
Both models agree Avg diff: 2.5°C

Where are air quality stations near Rittō?

17
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
3.9 km PM2.5: 4.1 µg/m³
72
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
3.9 km PM2.5: 22.1 µg/m³
25
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
3.9 km PM2.5: 6.0 µg/m³
17
Moriyama, Moriyama, Shiga, Japan (守山守山市)
4.2 km PM2.5: 4.1 µg/m³
65
Kusatsucho, Kusatsu, Shiga, Japan (草津草津市)
4.5 km PM2.5: 18.8 µg/m³
29
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
11.5 km PM2.5: 7.0 µg/m³
46
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
11.5 km PM2.5: 11.0 µg/m³
21
Honkatata, Otsu, Shiga, Japan (堅田大津市)
12.1 km PM2.5: 5.0 µg/m³
19
Honkatata, Otsu, Shiga, Japan (堅田大津市)
12.1 km PM2.5: 4.6 µg/m³
24
Otowadai, Otsu, Shiga, Japan (逢坂大津市)
12.6 km PM2.5: 5.8 µg/m³

What cities are near Rittō?

76 Kusatsu 68 Moriyama 71 Yasu 74 Konan 78 Ōtsu 72 Ōmihachiman 74 Kōka 74 Minakuchichō-matoba 75 Kitahama 72 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 2026-07-22T02:14 UTC.