What is the air quality in Uonuma today?

The current Air Quality Index (AQI) in Uonuma is 55 (Moderate). PM2.5 concentration is 14.0 µg/m³.

What is the temperature in Uonuma right now?

The current temperature in Uonuma is 18.0°C (feels like 18.0°C). Humidity is 69.9% and wind speed is 15.3 km/h.

Air Quality in Uonuma, Japan

Partly Cloudy

18.0°C · 69.9% humidity

18.0°

Feels 18.0°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

1 station

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

37h · 1 stn

View full history →

Uonuma'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.

69.9%

Humidity

15.3 km/h

Wind S

1017.9 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

14.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Uonuma?

Temperature & Precipitation

PM2.5 Trend

37h · 1 station

PM2.514.0 µg/m³ ✓ WHO

Moderate

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

14.0

Median

14.0

Average

14.0

Low

14.0

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -8.0

What is the 7-day forecast for Uonuma?

10-21

18.0° 11.2°

10-22

20.4° 12.4°

5.06 mm

10-23

18.0° 8.5°

4.63 mm

10-24

14.0° 10.7°

2.69 mm

10-25

16.1° 8.5°

10-26

15.7° 7.8°

0.06 mm

10-27

14.4° 10.3°

1.63 mm

Both models agree Avg diff: 4.2°C

Where are air quality stations near Uonuma?

Muikamachi, Minamiuonuma, Niigata, Japan (六日町南魚沼市)

21.2 km PM2.5: 14.0 µg/m³

Jooka, Nagaoka, Niigata, Japan (城岡自排長岡市)

26.6 km PM2.5: 12.0 µg/m³

What cities are near Uonuma?

50 Ojiya 55 Minamiuonuma 55 Muikamachi 55 Tōkamachi 50 Nagaoka 55 Shiozawa 50 Tochio-honchō 50 Mitsuke 36 Kashiwazaki 36 Sanjō

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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 2026-10-21T08:28 UTC.