Air Quality in Shiojiri, Japan

Rain
20.4°C · 92.8% humidity
20.4°
Feels 20.4°
44
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
34 5am
34
34
44 8am
39
34
31 11am
29
28
27 2pm
27
26
26 5pm
26
27
27 8pm
34
54
54 11pm
54
54
54 2am
54
54
AD 728×90

Air Quality Index Trend

44h · 1 stn

Shiojiri'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.

92.8%
Humidity
23.5 km/h
Wind S
1003.7 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
44
10.6 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Shiojiri?

Temperature & Precipitation

PM2.5 Trend

44h · 1 station
PM2.510.6 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (1 station within 25 km)
10.6
Median
10.6
Average
10.6
Low
10.6
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -3.2
Both models agree Avg diff: 4.9°C

Where are air quality stations near Shiojiri?

72
Kamigawa, Suwa, Nagano, Japan (諏訪諏訪市)
14.6 km PM2.5: 22.1 µg/m³

What cities are near Shiojiri?

45 Okaya 45 Shimosuwa 41 Tatsuno 44 Matsumoto 49 Suwa 51 Chino 27 Azumino 37 Kinoshita 31 Toyoshina 36 Minamiminowa
Get AQI alerts for Shiojiri

Notify me when air quality reaches:

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 2026-07-21T23:16 UTC.