Air Quality in Suwa, Japan

Drizzle
20.4°C · 56.3% humidity
20.4°
Feels 20.4°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast
34 5am
34
27
21 8am
25
25
25 11am
25
25
25 2pm
25
25
25 5pm
25
25
27 8pm
27
27
34 11pm
34
34
54 2am
54
54
AD 728×90

Air Quality Index Trend

46h · 6 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.

56.3%
Humidity
6.1 km/h
Wind SE
1014.3 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
21
5.02 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Suwa?

Temperature & Precipitation

PM2.5 Trend

46h · 6 stations
PM2.55.02 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250
Station readings (3 stations within 25 km)
5.02
Median
9.6
Average
5.0
Low
18.3
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.2

What is the 7-day forecast for Suwa?

05-29
19.4° 13.2°
45.12 mm
05-30
21.7° 12.9°
2.69 mm
05-31
23.7° 13.8°
0.06 mm
06-01
21.6° 13.8°
06-02
24.3° 12.1°
0.56 mm
06-03
24.8° 14.1°
2.31 mm
06-04
21.0° 8.3°
1.44 mm
Both models agree Avg diff: 2.5°C

Where are air quality stations near Suwa?

17
Kamigawa, Suwa, Nagano, Japan (諏訪諏訪市)
0.7 km PM2.5: 4.1 µg/m³
64
倉敷市/庄, Japan (庄倉敷市)
22.4 km PM2.5: 18.3 µg/m³
34
Arai, Ina, Nagano, Japan (伊那伊那市)
26.1 km PM2.5: 8.2 µg/m³

What cities are near Suwa?

23 Shimosuwa 24 Chino 23 Okaya 22 Tatsuno 23 Shiojiri 22 Kinoshita 22 Minamiminowa 25 Matsumoto 21 Ina 32 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 2026-05-29T23:40 UTC.