What is the air quality in Suwa today?

The current Air Quality Index (AQI) in Suwa is 21 (Good). PM2.5 concentration is 4.98 µg/m³.

What is the temperature in Suwa right now?

The current temperature in Suwa is 21.6°C (feels like 21.6°C). Humidity is 49.2% and wind speed is 18.2 km/h.

Is it safe to go outside in Suwa?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 14.9 (Extreme).

Air Quality in Suwa, Japan

Clear

21.6°C · 49.2% humidity

21.6°

Feels 21.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 11am

21 2pm

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Air Quality Index Trend

47h · 5 stn

View full history →

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.

49.2%

Humidity

18.2 km/h

Wind NE

1013.7 hPa

Pressure

14.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.98 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Suwa?

Temperature & Precipitation

PM2.5 Trend

47h · 5 stations

PM2.54.98 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX14.9

Extreme

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?

Kamigawa, Suwa, Nagano, Japan (諏訪諏訪市)

0.7 km PM2.5: 8.2 µg/m³

倉敷市/庄, Japan (庄倉敷市)

22.4 km PM2.5: 7.9 µg/m³

Arai, Ina, Nagano, Japan (伊那伊那市)

26.1 km PM2.5: 8.2 µg/m³

What cities are near Suwa?

20 Shimosuwa 13 Chino 20 Okaya 13 Tatsuno 20 Shiojiri 13 Kinoshita 13 Minamiminowa 23 Matsumoto 13 Ina 24 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 2026-06-09T05:11 UTC.