What is the air quality in Chikuma today?

The current Air Quality Index (AQI) in Chikuma is 46 (Good). PM2.5 concentration is 11.07 µg/m³.

What is the temperature in Chikuma right now?

The current temperature in Chikuma is 18.6°C (feels like 18.6°C). Humidity is 69.8% and wind speed is 4.5 km/h.

Is it safe to go outside in Chikuma?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 5.9 (High).

Air Quality in Chikuma, Japan

Partly Cloudy

18.6°C · 69.8% humidity

18.6°

Feels 18.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast

24 5am

46 8am

32 11am

27 2pm

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— 5pm

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— 8pm

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— 11pm

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— 2am

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Air Quality Index Trend

46h · 3 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.

69.8%

Humidity

4.5 km/h

Wind SE

1015.6 hPa

Pressure

5.9

UV High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

11.07 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Chikuma?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations

PM2.511.07 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX5.9

High

Station readings (4 stations within 25 km)

11.07

Median

10.38

Average

2.6

Low

20.2

High

PM2.5 µg/m³ · Model: 6.25 · Bias: -4.8

What is the 7-day forecast for Chikuma?

06-08

23.7° 12.3°

3.38 mm

06-09

23.4° 13.9°

0.5 mm

06-10

20.2° 13.1°

7.06 mm

06-11

24.9° 12.8°

0.13 mm

06-12

20.0° 13.8°

0.25 mm

06-13

26.8° 14.2°

06-14

30.1° 15.2°

0.13 mm

Both models agree Avg diff: 2.5°C

Where are air quality stations near Chikuma?

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

7.2 km PM2.5: 11.5 µg/m³

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

7.2 km PM2.5: 7.2 µg/m³

Amori, Nagano, Nagano, Japan (環境保全研究所長野市)

14.2 km PM2.5: 4.1 µg/m³

Nagano (長野)

16.4 km PM2.5: 8.2 µg/m³

Nagano (長野)

16.4 km PM2.5: 3.1 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: 7.0 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: 10.1 µg/m³

What cities are near Chikuma?

45 Sakaki 39 Nagano 19 Ōmachi 48 Ueda 41 Suzaka 18 Hotaka 26 Kamimaruko 20 Toyoshina 27 Tōmi 15 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 2026-06-08T23:10 UTC.