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Nagahama (Shiga) (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

Cloudy
-1°C
Cloudy
Humidity
86.4%
Wind
2 m/s
Pressure
1021.7 hPa
Direction
35°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-2° / 4°
Precip.
0.6mm
Max wind
6.6 m/s

Hourly Forecast

31.01
Now
Weather
-1°
31.01
15:00
Weather
-1°
31.01
16:00
Weather
-1°
31.01
17:00
Weather
-2°
31.01
18:00
Weather
-1°
31.01
19:00
Weather
-1°
31.01
20:00
Weather
-0°
31.01
21:00
Weather
-1°
31.01
22:00
Weather
-0°
31.01
23:00
Weather
01.02
00:00
Weather
01.02
01:00
Weather
01.02
02:00
Weather
01.02
03:00
Weather
6
01.02
04:00
Weather
0.1
6
01.02
05:00
Weather
0.1
6
01.02
06:00
Weather
7
01.02
07:00
Weather
6
01.02
08:00
Weather
6
01.02
09:00
Weather
01.02
10:00
Weather
01.02
11:00
Weather
01.02
12:00
Weather
0.2
01.02
13:00
Weather
0.2

Temperature

4°C
-2°C
14:00
-1°C
15:00
-1°C
16:00
-1°C
17:00
-2°C
18:00
-1°C
19:00
-1°C
20:00
-0°C
21:00
-1°C
22:00
-0°C
23:00
1°C
00:00
2°C
01:00
3°C
02:00
3°C
03:00
4°C
04:00
4°C
05:00
3°C
06:00
3°C
07:00
3°C
08:00
3°C
09:00
2°C
10:00
2°C
11:00
2°C
12:00
2°C
13:00
2°C
14:00 01:00 13:00

Precipitation

0.2mm
0mm
04:00
0.1mm
05:00
0.1mm
12:00
0.2mm
13:00
0.2mm
14:00 01:00 13:00

Wind

6.6m/s
0m/s
14:00
1.9 m/s
15:00
2.2 m/s
16:00
3.1 m/s
17:00
3.6 m/s
18:00
3.1 m/s
19:00
2.4 m/s
20:00
2.7 m/s
21:00
2.8 m/s
22:00
2.4 m/s
23:00
2.4 m/s
00:00
2.4 m/s
01:00
3.6 m/s
02:00
4.3 m/s
03:00
6 m/s
04:00
5.9 m/s
05:00
6.2 m/s
06:00
6.6 m/s
07:00
5.6 m/s
08:00
5.8 m/s
09:00
4.6 m/s
10:00
4.5 m/s
11:00
4.6 m/s
12:00
4.5 m/s
13:00
4.6 m/s
14:00 01:00 13:00

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
62.3 km
88
29.3%

Measurement time: 2026-01-31 14:00

Calculated from PM2.5/PM10

PM2.5
62.3 km
30 µg/m3
35.7%

Measurement time: 2026-01-31 14:00

source: Aqicn

O3
62.3 km
25.6 µg/m3
16%

Measurement time: 2026-01-31 14:00

source: Aqicn

PM10
62.3 km
10 µg/m3
7.1%

Measurement time: 2026-01-31 14:00

source: Aqicn

NO2
62.3 km
13.9 µg/m3
7%

Measurement time: 2026-01-31 14:00

source: Aqicn

SO2
62.5 km
2.9 µg/m3
0.8%

Measurement time: 2026-01-31 14:00

source: Aqicn

CO
62.5 km
0.0045 mg/m3
0%

Measurement time: 2026-01-31 14:00

source: Aqicn

Info


Country: Japan
Region: Shiga
Latitude: 35.38333
Longitude: 136.26667


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About Air Quality in Nagahama

Air quality in Nagahama 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 Nagahama

  • 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 Nagahama?

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 Nagahama

If you're planning outdoor activities in Nagahama, 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.