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Hitoyoshi (Kumamoto) (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

Light rain
20°C
Light rain
Humidity
94.7%
Wind
4 m/s
Pressure
1005.6 hPa
Direction
268°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
12° / 25°
Precip.
0.1mm
Max wind
4.4 m/s

Hourly Forecast

10.04
Now
Weather
20°
0.1
10.04
08:00
Weather
19°
10.04
09:00
Weather
18°
10.04
10:00
Weather
17°
10.04
11:00
Weather
17°
10.04
12:00
Weather
16°
10.04
13:00
Weather
16°
10.04
14:00
Weather
15°
10.04
15:00
Weather
14°
10.04
16:00
Weather
13°
10.04
17:00
Weather
12°
10.04
18:00
Weather
13°
10.04
19:00
Weather
13°
10.04
20:00
Weather
12°
10.04
21:00
Weather
12°
10.04
22:00
Weather
12°
10.04
23:00
Weather
13°
11.04
00:00
Weather
15°
11.04
01:00
Weather
17°
11.04
02:00
Weather
20°
11.04
03:00
Weather
23°
11.04
04:00
Weather
24°
11.04
05:00
Weather
25°
11.04
06:00
Weather
24°

Temperature

25°C
12°C
07:00
20°C
08:00
19°C
09:00
18°C
10:00
17°C
11:00
17°C
12:00
16°C
13:00
16°C
14:00
15°C
15:00
14°C
16:00
13°C
17:00
12°C
18:00
13°C
19:00
13°C
20:00
12°C
21:00
12°C
22:00
12°C
23:00
13°C
00:00
15°C
01:00
17°C
02:00
20°C
03:00
23°C
04:00
24°C
05:00
25°C
06:00
24°C
07:00 18:00 06:00

Precipitation

0.1mm
0mm
07:00
0.1mm
07:00 18:00 06:00

Wind

4.4m/s
0m/s
07:00
4.4 m/s
08:00
4.3 m/s
09:00
4.4 m/s
10:00
4 m/s
11:00
3.6 m/s
12:00
3.9 m/s
13:00
3.9 m/s
14:00
4.4 m/s
15:00
3.5 m/s
16:00
3.4 m/s
17:00
3.2 m/s
18:00
3.1 m/s
19:00
2.9 m/s
20:00
2.9 m/s
21:00
2.8 m/s
22:00
2.6 m/s
23:00
3 m/s
00:00
2.9 m/s
01:00
2.8 m/s
02:00
3.1 m/s
03:00
3.7 m/s
04:00
4 m/s
05:00
4.1 m/s
06:00
3.8 m/s
07:00 18:00 06:00

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
95.8 km
144
48%

Measurement time: 2026-04-10 07:00

Calculated from PM2.5/PM10

PM2.5
95.8 km
53 µg/m3
63.1%

Measurement time: 2026-04-10 07:00

source: Aqicn

O3
95.8 km
31.2 µg/m3
19.5%

Measurement time: 2026-04-10 07:00

source: Aqicn

PM10
95.8 km
20 µg/m3
14.3%

Measurement time: 2026-04-10 07:00

source: Aqicn

NO2
95.8 km
1 µg/m3
0.5%

Measurement time: 2026-04-10 07:00

source: Aqicn

SO2
95.8 km
1.5 µg/m3
0.4%

Measurement time: 2026-04-10 07:00

source: Aqicn

CO
95.8 km
0.0023 mg/m3
0%

Measurement time: 2026-04-10 07:00

source: Aqicn

Info


Country: Japan
Region: Kumamoto
Latitude: 32.21667
Longitude: 130.75


Solar Energy

Very low
12.9 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Hitoyoshi

About Air Quality in Hitoyoshi

Air quality in Hitoyoshi 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 Hitoyoshi

  • 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 Hitoyoshi?

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 Hitoyoshi

If you're planning outdoor activities in Hitoyoshi, 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.