Air Quality in Jōetsu, Japan
Cloudy
18.3°C · 85.0% humidity
18.3°
Feels 18.3°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Jōetsu's air quality — share it
AQI Forecast
54
1am
34
34
25
4am
27
27
25
7am
25
27
27
10am
27
27
34
1pm
34
34
34
4pm
34
34
54
7pm
54
54
34
10pm
34
34
Air Quality Index Trend
27h · 1 stnJōetsu'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.
85.0%
Humidity
27.4 km/h
Wind SSE
1018.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Jōetsu?
Temperature & Precipitation
PM2.5 Trend
27h · 1 stationPM2.56.0 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
6.0
Median
6.0
Average
6.0
Low
6.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +0.2
What is the 7-day forecast for Jōetsu?
05-29
19.6° 16.3°
28.75 mm
05-30
18.1° 17.3°
2.44 mm
05-31
19.5° 18.0°
06-01
19.1° 18.2°
06-02
20.0° 18.4°
06-03
19.9° 18.5°
2.19 mm
06-04
20.6° 16.9°
3.0 mm
Both models agree
Avg diff: 3.1°C
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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 2026-05-29T19:39 UTC.