What is the air quality in Jōetsu today?

The current Air Quality Index (AQI) in Jōetsu is 34 (Good). PM2.5 concentration is 8.18 µg/m³.

What is the temperature in Jōetsu right now?

The current temperature in Jōetsu is 20.7°C (feels like 20.7°C). Humidity is 55.3% and wind speed is 79.2 km/h.

Is it safe to go outside in Jōetsu?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Jōetsu, Japan

Windy

20.7°C · 55.3% humidity

20.7°

Feels 20.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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View AQI history for Jōetsu →

Jōetsu'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.

55.3%

Humidity

79.2 km/h

Wind WNW

1017.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.18 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Jōetsu?

Temperature & Precipitation

PM2.58.18 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Jōetsu?

10-21

20.7° 16.7°

0.06 mm

10-22

20.2° 16.4°

4.63 mm

10-23

19.1° 14.0°

6.94 mm

10-24

16.5° 15.0°

12.69 mm

10-25

19.1° 14.2°

0.44 mm

10-26

18.7° 14.0°

0.31 mm

10-27

16.8° 14.3°

3.44 mm

Both models agree Avg diff: 2.8°C

What cities are near Jōetsu?

30 Myoko 31 Arai 34 Iiyama 31 Itoigawa 37 Kashiwazaki 34 Nakano 4 Tōkamachi 27 Ojiya 34 Nagano 4 Shiozawa

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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 2026-10-21T05:26 UTC.