Air Quality in Kōka, Japan

Cloudy
19.4°C · 74.3% humidity
19.4°
Feels 19.4°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast
54 6am
54
54
24 9am
18
20
21 12pm
22
25
26 3pm
26
26
27 6pm
27
34
54 9pm
54
54
66 12am
66
66
66 3am
66
54
AD 728×90

Air Quality Index Trend

47h · 35 stn

Kōka'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
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
24
5.69 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Kōka?

Temperature & Precipitation

PM2.5 Trend

47h · 35 stations
PM2.55.69 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250
Station readings (8 stations within 25 km)
5.69
Median
3.98
Average
2.2
Low
8.2
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +1.7
Both models agree Avg diff: 2.2°C

Where are air quality stations near Kōka?

5
Minakuchicho Minakuchi, Koka, Shiga, Japan (甲賀甲賀市)
1.8 km PM2.5: 1.2 µg/m³
30
Kasugacho, Higashiomi, Shiga, Japan (東近江東近江市)
14.6 km PM2.5: 7.2 µg/m³
29
Kasugacho, Higashiomi, Shiga, Japan (東近江東近江市)
14.6 km PM2.5: 7.0 µg/m³
56
Moriyama, Moriyama, Shiga, Japan (守山守山市)
18.2 km PM2.5: 14.5 µg/m³
32
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
18.3 km PM2.5: 7.7 µg/m³
21
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
18.3 km PM2.5: 5.0 µg/m³
34
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
18.3 km PM2.5: 8.2 µg/m³
5
Kusatsucho, Kusatsu, Shiga, Japan (草津草津市)
19.1 km PM2.5: 1.2 µg/m³
52
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
22.8 km PM2.5: 12.6 µg/m³
17
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
22.8 km PM2.5: 4.1 µg/m³

What cities are near Kōka?

24 Minakuchichō-matoba 20 Konan 21 Hino 20 Rittō 14 Youkaichi 20 Ōmihachiman 13 Kusatsu 25 Yasu 34 Moriyama 16 Echigawa
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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 2026-06-09T00:41 UTC.