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Hikone (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

Nublado
13°C
Nublado
Humidity
85.4%
Wind
8 m/s
Pressure
1014.5 hPa
Direction
102°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
13° / 18°
Precip.
52mm
Max wind
9.4 m/s

Hourly Forecast

09.04
Now
Weather
13°
8
09.04
12:00
Weather
13°
0.3
8
09.04
13:00
Weather
13°
2.1
9
09.04
14:00
Weather
13°
3.4
9
09.04
15:00
Weather
13°
0.9
9
09.04
16:00
Weather
14°
1.3
9
09.04
17:00
Weather
14°
4.1
9
09.04
18:00
Weather
14°
0.8
8
09.04
19:00
Weather
14°
8
09.04
20:00
Weather
14°
1.8
7
09.04
21:00
Weather
14°
1.3
8
09.04
22:00
Weather
14°
2.4
8
09.04
23:00
Weather
14°
1.3
7
10.04
00:00
Weather
15°
2.4
6
10.04
01:00
Weather
15°
2
6
10.04
02:00
Weather
16°
3.4
6
10.04
03:00
Weather
16°
1.5
10.04
04:00
Weather
16°
2.8
10.04
05:00
Weather
17°
6
10.04
06:00
Weather
18°
9.5
10.04
07:00
Weather
18°
4.7
10.04
08:00
Weather
17°
10.04
09:00
Weather
18°
10.04
10:00
Weather
18°

Temperature

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

Precipitation

9.5mm
0mm
12:00
0.3mm
13:00
2.1mm
14:00
3.4mm
15:00
0.9mm
16:00
1.3mm
17:00
4.1mm
18:00
0.8mm
20:00
1.8mm
21:00
1.3mm
22:00
2.4mm
23:00
1.3mm
00:00
2.4mm
01:00
2mm
02:00
3.4mm
03:00
1.5mm
04:00
2.8mm
05:00
6mm
06:00
9.5mm
07:00
4.7mm
11:00 22:00 10:00

Wind

9.4m/s
0m/s
11:00
8.2 m/s
12:00
8.4 m/s
13:00
8.8 m/s
14:00
9.4 m/s
15:00
9.2 m/s
16:00
9 m/s
17:00
9.2 m/s
18:00
8 m/s
19:00
7.5 m/s
20:00
7.3 m/s
21:00
7.9 m/s
22:00
7.6 m/s
23:00
6.9 m/s
00:00
5.8 m/s
01:00
5.9 m/s
02:00
5.7 m/s
03:00
3.8 m/s
04:00
2.9 m/s
05:00
3.4 m/s
06:00
2.5 m/s
07:00
3 m/s
08:00
2.4 m/s
09:00
4.5 m/s
10:00
4.7 m/s
11:00 22:00 10:00

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
92 km
154
51.3%

Measurement time: 2026-04-09 12:00

Calculated from PM2.5/PM10

PM2.5
92 km
63 µg/m3
75%

Measurement time: 2026-04-09 12:00

source: Aqicn

O3
60.1 km
45.6 µg/m3
28.5%

Measurement time: 2026-04-09 12:00

source: Aqicn

NO2
92 km
44.5 µg/m3
22.3%

Measurement time: 2026-04-09 12:00

source: Aqicn

PM10
92 km
19 µg/m3
13.6%

Measurement time: 2026-04-09 12:00

source: Aqicn

SO2
92 km
8.6 µg/m3
2.5%

Measurement time: 2026-04-09 12:00

source: Aqicn

CO
92 km
0.0056 mg/m3
0%

Measurement time: 2026-04-09 12:00

source: Aqicn

Info


Country: Japan
Region: Shiga
Latitude: 35.25
Longitude: 136.25


Solar Energy

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About Air Quality in Hikone

Air quality in Hikone 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 Hikone

  • 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 Hikone?

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 Hikone

If you're planning outdoor activities in Hikone, 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.