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Kamimaruko (Nagano) (JP)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Rain
10°C
Rain
Humidity
94.4%
Wind
4 m/s
Pressure
1007 hPa
Direction
54°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
10° / 16°
Precip.
16.9mm
Max wind
5.1 m/s

Hourly Forecast

09.04
Now
Weather
10°
0.7
09.04
23:00
Weather
12°
1
10.04
00:00
Weather
13°
0.8
10.04
01:00
Weather
14°
0.7
10.04
02:00
Weather
15°
0.4
10.04
03:00
Weather
15°
2.6
10.04
04:00
Weather
16°
3.8
10.04
05:00
Weather
16°
4
10.04
06:00
Weather
16°
2.1
10.04
07:00
Weather
15°
0.8
10.04
08:00
Weather
15°
10.04
09:00
Weather
14°
10.04
10:00
Weather
13°
10.04
11:00
Weather
13°
10.04
12:00
Weather
13°
10.04
13:00
Weather
13°
10.04
14:00
Weather
13°
10.04
15:00
Weather
13°
10.04
16:00
Weather
13°
10.04
17:00
Weather
13°
10.04
18:00
Weather
12°
10.04
19:00
Weather
11°
10.04
20:00
Weather
11°
5
10.04
21:00
Weather
11°

Temperature

16°C
10°C
22:00
10°C
23:00
12°C
00:00
13°C
01:00
14°C
02:00
15°C
03:00
15°C
04:00
16°C
05:00
16°C
06:00
16°C
07:00
15°C
08:00
15°C
09:00
14°C
10:00
13°C
11:00
13°C
12:00
13°C
13:00
13°C
14:00
13°C
15:00
13°C
16:00
13°C
17:00
13°C
18:00
12°C
19:00
11°C
20:00
11°C
21:00
11°C
22:00 09:00 21:00

Precipitation

4mm
0mm
22:00
0.7mm
23:00
1mm
00:00
0.8mm
01:00
0.7mm
02:00
0.4mm
03:00
2.6mm
04:00
3.8mm
05:00
4mm
06:00
2.1mm
07:00
0.8mm
22:00 09:00 21:00

Wind

5.1m/s
0m/s
22:00
4.4 m/s
23:00
4.7 m/s
00:00
4.4 m/s
01:00
4.3 m/s
02:00
4.6 m/s
03:00
4.8 m/s
04:00
4.1 m/s
05:00
3.3 m/s
06:00
2.9 m/s
07:00
2.4 m/s
08:00
2.5 m/s
09:00
3.6 m/s
10:00
3.3 m/s
11:00
3.4 m/s
12:00
3.9 m/s
13:00
3.7 m/s
14:00
3.5 m/s
15:00
3.4 m/s
16:00
3.7 m/s
17:00
4.1 m/s
18:00
4.5 m/s
19:00
4.7 m/s
20:00
5.1 m/s
21:00
4.9 m/s
22:00 09:00 21:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
65.6 km
8
2.7%

Measurement time: 2026-04-09 22:14

Calculated from PM2.5/PM10

O3
65.6 km
104.15 µg/m3
65.1%

Measurement time: 2026-04-09 22:14

source: OpenWeatherMap

PM2.5
65.6 km
1.97 µg/m3
2.3%

Measurement time: 2026-04-09 22:14

source: OpenWeatherMap

PM10
65.6 km
2.17 µg/m3
1.6%

Measurement time: 2026-04-09 22:14

source: OpenWeatherMap

CO
65.6 km
0.16197 mg/m3
1.2%

Measurement time: 2026-04-09 22:14

source: OpenWeatherMap

NO2
65.6 km
0.96 µg/m3
0.5%

Measurement time: 2026-04-09 22:14

source: OpenWeatherMap

SO2
65.6 km
0.37 µg/m3
0.1%

Measurement time: 2026-04-09 22:14

source: OpenWeatherMap

Info


Country: Japan
Region: Nagano
Latitude: 36.31865
Longitude: 138.27329


Solar Energy

Moderate
361.4 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Kamimaruko

About Air Quality in Kamimaruko

Air quality in Kamimaruko is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Kamimaruko

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Kamimaruko?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Kamimaruko

If you're planning outdoor activities in Kamimaruko, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.