Air Quality in Suwa, Japan

Cloudy
17.9°C · 72.1% humidity
17.9°
Feels 17.9°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
25 8am
25
25
46 11am
40
36
32 2pm
30
28
27 5pm
26
26
26 8pm
28
35
34 11pm
34
34
54 2am
54
54
54 5am
54
54
AD 728×90

Air Quality Index Trend

46h · 2 stn

Suwa'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.

72.1%
Humidity
6.2 km/h
Wind N
1015.5 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
46
11.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Suwa?

Temperature & Precipitation

PM2.5 Trend

46h · 2 stations
PM2.511.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
11.0
Median
11.0
Average
11.0
Low
11.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -4.8

What is the 7-day forecast for Suwa?

06-09
21.6° 13.5°
0.62 mm
06-10
19.2° 12.4°
8.75 mm
06-11
24.2° 11.8°
0.13 mm
06-12
18.9° 13.2°
0.25 mm
06-13
26.3° 14.0°
0.06 mm
06-14
28.7° 14.0°
0.62 mm
06-15
25.3° 15.9°
1.5 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near Suwa?

32
Kamigawa, Suwa, Nagano, Japan (諏訪諏訪市)
0.7 km PM2.5: 7.7 µg/m³
1
倉敷市/庄, Japan (庄倉敷市)
22.4 km PM2.5: 0.2 µg/m³
25
Arai, Ina, Nagano, Japan (伊那伊那市)
26.1 km PM2.5: 6.0 µg/m³

What cities are near Suwa?

46 Shimosuwa 46 Chino 46 Okaya 26 Tatsuno 26 Shiojiri 26 Kinoshita 25 Minamiminowa 29 Matsumoto 25 Ina 23 Hokuto
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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 2026-06-09T02:09 UTC.