What is the air quality in Chikuma today?

The current Air Quality Index (AQI) in Chikuma is 42 (Good). PM2.5 concentration is 10.03 µg/m³.

What is the temperature in Chikuma right now?

The current temperature in Chikuma is 14.2°C (feels like 14.2°C). Humidity is 72.1% and wind speed is 17.7 km/h.

Is it safe to go outside in Chikuma?

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

Air Quality in Chikuma, Japan

Cloudy

14.2°C · 72.1% humidity

14.2°

Feels 14.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 6 stn

View full history →

Chikuma'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.

72.1%

Humidity

17.7 km/h

Wind ESE

1018.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

10.03 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Chikuma?

Temperature & Precipitation

PM2.5 Trend

45h · 6 stations

PM2.510.03 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

10.03

Median

9.15

Average

8.2

Low

10.1

High

PM2.5 µg/m³ · Model: 5.8 · Bias: -4.2

What is the 7-day forecast for Chikuma?

10-21

14.2° 7.6°

10-22

20.5° 12.5°

0.13 mm

10-23

18.8° 6.2°

10-24

18.1° 12.2°

0.19 mm

10-25

17.0° 3.9°

1.56 mm

10-26

16.1° 4.0°

10-27

14.0° 6.4°

0.13 mm

Both models agree Avg diff: 4.2°C

Where are air quality stations near Chikuma?

Awasa, Chikuma, Nagano, Japan (更埴インターチェンジ千曲市)

3.2 km PM2.5: 10.1 µg/m³

Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)

7.2 km PM2.5: 7.2 µg/m³

Nagano (長野)

16.4 km PM2.5: 8.2 µg/m³

Nagano (長野)

16.4 km PM2.5: 8.2 µg/m³

Hokujo, Nagano Prefecture, Japan (国設八方尾根酸性雨北安曇郡白馬村)

27.6 km PM2.5: 9.1 µg/m³

What cities are near Chikuma?

41 Sakaki 34 Nagano 40 Ōmachi 36 Ueda 35 Suzaka 30 Hotaka 17 Kamimaruko 30 Toyoshina 25 Tōmi 30 Azumino

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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.