What is the air quality in Suwa today?

The current Air Quality Index (AQI) in Suwa is 30 (Good). PM2.5 concentration is 7.2 µg/m³.

What is the temperature in Suwa right now?

The current temperature in Suwa is 17.6°C (feels like 17.6°C). Humidity is 96.9% and wind speed is 12.4 km/h.

Is it safe to go outside in Suwa?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Suwa, Japan

Drizzle

17.6°C · 96.9% humidity

17.6°

Feels 17.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

24 5pm

30 8pm

26 11pm

25 2am

24 5am

24 8am

24 11am

24 2pm

Air Quality Index Trend

41h · 7 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.

96.9%

Humidity

12.4 km/h

Wind NNE

1011.1 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.2 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Suwa?

Temperature & Precipitation

PM2.5 Trend

41h · 7 stations

PM2.57.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

7.2

Median

7.2

Average

7.2

Low

7.2

High

PM2.5 µg/m³ · Model: 5.8 · Bias: -1.4

What is the 7-day forecast for Suwa?

09-05

25.8° 17.6°

3.31 mm

09-06

28.2° 16.9°

3.0 mm

09-07

28.1° 17.2°

1.31 mm

09-08

23.5° 16.1°

6.63 mm

09-09

23.3° 17.7°

0.5 mm

09-10

23.6° 17.5°

6.0 mm

09-11

26.0° 17.0°

1.13 mm

Both models agree Avg diff: 2.4°C

Where are air quality stations near Suwa?

Kamigawa, Suwa, Nagano, Japan (諏訪諏訪市)

0.7 km PM2.5: 5.0 µg/m³

Shinmeicho, Okaya, Nagano, Japan (岡谷インターチェンジ岡谷市)

7.4 km PM2.5: 4.1 µg/m³

倉敷市/庄, Japan (庄倉敷市)

22.4 km PM2.5: 8.2 µg/m³

Nagisa, Matsumoto, Nagano, Japan (松本渚交差点松本市)

25.7 km PM2.5: 6.0 µg/m³

Arai, Ina, Nagano, Japan (伊那伊那市)

26.1 km PM2.5: 4.1 µg/m³

What cities are near Suwa?

30 Shimosuwa 30 Chino 30 Okaya 30 Tatsuno 30 Shiojiri 30 Kinoshita 30 Minamiminowa 25 Matsumoto 21 Ina 25 Hokuto

Get AQI alerts for Suwa

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 2026-09-05T11:12 UTC.