Air Quality in Chikuma, Japan
Heavy Rain
17.5°C · 79.3% humidity
17.5°
Feels 17.5°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Chikuma's air quality — share it
AQI Forecast
24
3am
24
24
13
6am
16
18
20
9am
21
22
26
12pm
33
53
53
3pm
54
34
34
6pm
27
27
27
9pm
25
27
27
12am
27
27
Air Quality Index Trend
46h · 3 stnChikuma'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.
79.3%
Humidity
3.0 km/h
Wind NW
998.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.25 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Chikuma?
Temperature & Precipitation
PM2.5 Trend
46h · 3 stationsPM2.53.25 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
3.25
Median
3.6
Average
1.2
Low
6.0
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +2.7
What is the 7-day forecast for Chikuma?
05-28
24.2° 8.9°
0.06 mm
05-29
21.0° 15.2°
50.13 mm
05-30
24.1° 12.9°
3.88 mm
05-31
25.5° 14.1°
0.19 mm
06-01
22.7° 14.9°
0.06 mm
06-02
25.5° 12.1°
0.06 mm
06-03
23.6° 14.6°
1.63 mm
Both models agree
Avg diff: 2.5°C
Where are air quality stations near Chikuma?
41
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
17
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
30
Amori, Nagano, Nagano, Japan (環境保全研究所長野市)
34
Nagano (長野)
34
Nagano (長野)
25
Hokujo, Nagano Prefecture, Japan (国設八方尾根酸性雨北安曇郡白馬村)
50
Hokujo, Nagano Prefecture, Japan (国設八方尾根酸性雨北安曇郡白馬村)
What cities are near Chikuma?
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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 2026-05-28T21:35 UTC.