What is the air quality in Kōshū today?

The current Air Quality Index (AQI) in Kōshū is 51 (Moderate). PM2.5 concentration is 12.24 µg/m³.

What is the temperature in Kōshū right now?

The current temperature in Kōshū is 10.2°C (feels like 10.2°C). Humidity is 95.3% and wind speed is 15.8 km/h.

Air Quality in Kōshū, Japan

Drizzle

10.2°C · 95.3% humidity

10.2°

Feels 10.2°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

2 stations

Nearby Monitoring Stations

AQI Forecast

— 2pm

—

— 5pm

—

— 8pm

—

— 11pm

—

— 2am

—

— 5am

—

— 8am

—

— 11am

—

Air Quality Index Trend

45h · 17 stn

View full history →

Kōshū'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.

95.3%

Humidity

15.8 km/h

Wind SSE

1021.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

12.24 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Kōshū?

Temperature & Precipitation

PM2.5 Trend

45h · 17 stations

PM2.512.24 µg/m³ ✓ WHO

Moderate

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

12.24

Median

13.5

Average

12.0

Low

15.0

High

PM2.5 µg/m³ · Model: 5.8 · Bias: -6.4

What is the 7-day forecast for Kōshū?

10-21

14.0° 9.1°

0.38 mm

10-22

16.9° 11.1°

0.88 mm

10-23

17.4° 6.6°

10-24

14.6° 10.7°

0.25 mm

10-25

13.2° 5.9°

9.62 mm

10-26

13.9° 7.0°

10-27

12.6° 8.0°

1.13 mm

Both models agree Avg diff: 4.0°C

Where are air quality stations near Kōshū?

Enzankamishiogo, Koshu, Yamanashi, Japan (東山梨甲州市)

5.7 km PM2.5: 7.2 µg/m³

Enzankamishiogo, Koshu, Yamanashi, Japan (東山梨甲州市)

5.7 km PM2.5: 12.0 µg/m³

Otsukimachi Hanasaki, Otsuki, Yamanashi, Japan (大月大月市)

19.6 km PM2.5: 15.0 µg/m³

102

Kokubo, Kofu, Yamanashi, Japan (国母自排甲府市)

21.6 km PM2.5: 35.9 µg/m³

What cities are near Kōshū?

50 Enzan 50 Yamanashi 48 Isawa 47 Fuefuki 50 Kofu 57 Ōtsuki 53 Tsuru 50 Shōwa 50 Kai 50 Ryūō

Get AQI alerts for Kōshū

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T08:27 UTC.