Is time to run? ⚠️☢️☣️

Sasayama (Hyōgo) (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
19°C
Cloudy
Humidity
87.6%
Wind
6 m/s
Pressure
1000.7 hPa
Direction
213°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
11° / 22°
Precip.
0.5mm
Max wind
6 m/s

Hourly Forecast

10.04
Now
Weather
19°
6
10.04
09:00
Weather
18°
6
10.04
10:00
Weather
17°
10.04
11:00
Weather
17°
10.04
12:00
Weather
17°
10.04
13:00
Weather
16°
10.04
14:00
Weather
16°
10.04
15:00
Weather
15°
10.04
16:00
Weather
15°
10.04
17:00
Weather
14°
10.04
18:00
Weather
13°
10.04
19:00
Weather
13°
10.04
20:00
Weather
12°
10.04
21:00
Weather
11°
10.04
22:00
Weather
12°
10.04
23:00
Weather
13°
0.2
11.04
00:00
Weather
15°
11.04
01:00
Weather
17°
11.04
02:00
Weather
18°
11.04
03:00
Weather
20°
11.04
04:00
Weather
21°
11.04
05:00
Weather
22°
0.1
6
11.04
06:00
Weather
19°
0.2
5
11.04
07:00
Weather
19°
6

Temperature

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

Precipitation

0.2mm
0mm
23:00
0.2mm
05:00
0.1mm
06:00
0.2mm
08:00 19:00 07:00

Wind

6m/s
0m/s
08:00
5.7 m/s
09:00
6 m/s
10:00
4.9 m/s
11:00
4.7 m/s
12:00
4.3 m/s
13:00
3.7 m/s
14:00
3.7 m/s
15:00
3.9 m/s
16:00
3.5 m/s
17:00
3.4 m/s
18:00
3.6 m/s
19:00
3.3 m/s
20:00
3 m/s
21:00
3 m/s
22:00
3.6 m/s
23:00
3.4 m/s
00:00
2.9 m/s
01:00
3.3 m/s
02:00
4 m/s
03:00
4.3 m/s
04:00
4.4 m/s
05:00
6 m/s
06:00
5.4 m/s
07:00
5.5 m/s
08:00 19:00 07:00

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
49 km
160
53.3%

Measurement time: 2026-04-10 10:00

Calculated from PM2.5/PM10

PM2.5
49 km
74 µg/m3
88.1%

Measurement time: 2026-04-10 10:00

source: Aqicn

PM10
49 km
50 µg/m3
35.7%

Measurement time: 2026-04-10 10:00

source: Aqicn

O3
41.9 km
36.1 µg/m3
22.6%

Measurement time: 2026-04-10 09:00

source: Aqicn

NO2
41.9 km
25.1 µg/m3
12.6%

Measurement time: 2026-04-10 09:00

source: Aqicn

SO2
49 km
7.2 µg/m3
2.1%

Measurement time: 2026-04-10 10:00

source: Aqicn

CO
49.1 km
0.0045 mg/m3
0%

Measurement time: 2026-04-10 09:00

source: Aqicn

Info


Country: Japan
Region: Hyōgo
Latitude: 35.06667
Longitude: 135.21667


Solar Energy

Night
0 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Sasayama

About Air Quality in Sasayama

Air quality in Sasayama 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 Sasayama

  • 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 Sasayama?

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 Sasayama

If you're planning outdoor activities in Sasayama, 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.