Air Quality in Ōmachi, Japan

Overcast
15.5°C · 95.6% humidity
15.5°
Feels 15.5°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
25 8am
25
25
26 11am
25
25
25 2pm
25
25
25 5pm
25
27
27 8pm
27
27
27 11pm
25
25
25 2am
25
27
27 5am
27
25
AD 728×90

Air Quality Index Trend

45h · 8 stn

Ōmachi'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.

95.6%
Humidity
11.3 km/h
Wind W
1012.6 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
26
6.25 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Ōmachi?

Temperature & Precipitation

PM2.5 Trend

45h · 8 stations
PM2.56.25 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250

What is the 7-day forecast for Ōmachi?

08-03
20.7° 15.5°
7.81 mm
08-04
26.3° 16.4°
8.88 mm
08-05
21.8° 17.2°
5.75 mm
08-06
21.6° 14.9°
27.44 mm
08-07
23.3° 16.9°
10.88 mm
08-08
26.3° 16.4°
10.25 mm
08-09
19.3° 15.9°
1.5 mm
Both models agree Avg diff: 5.2°C

Where are air quality stations near Ōmachi?

38
Awasa, Chikuma, Nagano, Japan (更埴インターチェンジ千曲市)
23.3 km PM2.5: 9.1 µg/m³
21
Awasa, Chikuma, Nagano, Japan (更埴インターチェンジ千曲市)
23.3 km PM2.5: 5.0 µg/m³
30
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
26.0 km PM2.5: 7.2 µg/m³

What cities are near Ōmachi?

27 Hotaka 27 Chikuma 28 Toyoshina 29 Azumino 27 Sakaki 31 Matsumoto 30 Nagano 34 Ueda 31 Kamimaruko 34 Suzaka
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T02:59 UTC.