Air Quality in Kōshū, Japan
Cloudy
16.5°C · 83.4% humidity
16.5°
Feels 16.5°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Kōshū's air quality — share it
AQI Forecast
24
6am
25
25
28
9am
25
27
27
12pm
27
27
27
3pm
27
34
34
6pm
54
54
54
9pm
54
66
66
12am
66
54
54
3am
54
54
Air Quality Index Trend
47h · 13 stnKōshū'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.
83.4%
Humidity
18.3 km/h
Wind SSW
1015.7 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.73 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Kōshū?
Temperature & Precipitation
PM2.5 Trend
47h · 13 stationsPM2.56.73 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
Station readings (4 stations within 25 km)
6.73
Median
3.8
Average
2.2
Low
7.7
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -0.7
What is the 7-day forecast for Kōshū?
06-09
17.6° 14.8°
0.94 mm
06-10
19.3° 11.6°
12.75 mm
06-11
19.8° 12.8°
2.44 mm
06-12
19.4° 12.6°
2.63 mm
06-13
26.0° 13.3°
0.69 mm
06-14
24.9° 13.1°
31.38 mm
06-15
22.9° 15.9°
9.19 mm
Both models agree
Avg diff: 2.7°C
Where are air quality stations near Kōshū?
25
Enzankamishiogo, Koshu, Yamanashi, Japan (東山梨甲州市)
24
Otsukimachi Hanasaki, Otsuki, Yamanashi, Japan (大月大月市)
20
Kokubo, Kofu, Yamanashi, Japan (国母自排甲府市)
What cities are near Kōshū?
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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 2026-06-09T00:50 UTC.