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Toyohashi (Aichi) (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
14°C
Rain
Humidity
74.7%
Wind
5 m/s
Pressure
1016.8 hPa
Direction
87°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
14° / 20°
Precip.
69.7mm
Max wind
12 m/s

Hourly Forecast

09.04
Now
Weather
14°
0.5
5
09.04
12:00
Weather
14°
09.04
13:00
Weather
14°
0.9
09.04
14:00
Weather
14°
1.7
6
09.04
15:00
Weather
14°
2.2
7
09.04
16:00
Weather
15°
1.9
7
09.04
17:00
Weather
15°
2.1
8
09.04
18:00
Weather
16°
4.6
8
09.04
19:00
Weather
16°
5.1
09.04
20:00
Weather
15°
3.6
09.04
21:00
Weather
16°
3.8
09.04
22:00
Weather
16°
3.9
09.04
23:00
Weather
16°
4.1
10.04
00:00
Weather
16°
4.1
10.04
01:00
Weather
16°
5.4
6
10.04
02:00
Weather
17°
4.3
6
10.04
03:00
Weather
17°
4.2
7
10.04
04:00
Weather
18°
2.3
11
10.04
05:00
Weather
19°
0.6
12
10.04
06:00
Weather
20°
1.7
11
10.04
07:00
Weather
19°
2.4
10
10.04
08:00
Weather
19°
4.5
11
10.04
09:00
Weather
19°
3.9
11
10.04
10:00
Weather
19°
1.9
8

Temperature

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

Precipitation

5.4mm
0mm
11:00
0.5mm
13:00
0.9mm
14:00
1.7mm
15:00
2.2mm
16:00
1.9mm
17:00
2.1mm
18:00
4.6mm
19:00
5.1mm
20:00
3.6mm
21:00
3.8mm
22:00
3.9mm
23:00
4.1mm
00:00
4.1mm
01:00
5.4mm
02:00
4.3mm
03:00
4.2mm
04:00
2.3mm
05:00
0.6mm
06:00
1.7mm
07:00
2.4mm
08:00
4.5mm
09:00
3.9mm
10:00
1.9mm
11:00 22:00 10:00

Wind

12m/s
0m/s
11:00
5.2 m/s
12:00
4.7 m/s
13:00
5 m/s
14:00
5.5 m/s
15:00
6.7 m/s
16:00
7.4 m/s
17:00
7.5 m/s
18:00
7.9 m/s
19:00
4.9 m/s
20:00
4 m/s
21:00
4.2 m/s
22:00
3.9 m/s
23:00
3.6 m/s
00:00
4.4 m/s
01:00
5.6 m/s
02:00
5.7 m/s
03:00
7.3 m/s
04:00
11.2 m/s
05:00
12 m/s
06:00
10.9 m/s
07:00
10.1 m/s
08:00
11 m/s
09:00
11.4 m/s
10:00
7.5 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
63.4 km
151
50.3%

Measurement time: 2026-04-09 12:00

Calculated from PM2.5/PM10

PM2.5
63.4 km
57 µg/m3
67.9%

Measurement time: 2026-04-09 12:00

source: Aqicn

O3
63.4 km
45.6 µg/m3
28.5%

Measurement time: 2026-04-09 12:00

source: Aqicn

PM10
63.4 km
16 µg/m3
11.4%

Measurement time: 2026-04-09 12:00

source: Aqicn

NO2
63.4 km
13.9 µg/m3
7%

Measurement time: 2026-04-09 12:00

source: Aqicn

SO2
63.4 km
1.5 µg/m3
0.4%

Measurement time: 2026-04-09 12:00

source: Aqicn

CO
63.4 km
0.0023 mg/m3
0%

Measurement time: 2026-04-09 12:00

source: Aqicn

Info


Country: Japan
Region: Aichi
Latitude: 34.76667
Longitude: 137.38333

Cities in the area:


Solar Energy

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0 W/m²
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About Air Quality in Toyohashi

Air quality in Toyohashi 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 Toyohashi

  • 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 Toyohashi?

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 Toyohashi

If you're planning outdoor activities in Toyohashi, 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.