Is time to run? ⚠️☢️☣️

Tōkamachi (Niigata) (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
18°C
Cloudy
Humidity
55.8%
Wind
4 m/s
Pressure
1000.9 hPa
Direction
145°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
10° / 18°
Precip.
10.7mm
Max wind
6.9 m/s

Hourly Forecast

10.04
Now
Weather
18°
10.04
03:00
Weather
18°
0.5
10.04
04:00
Weather
18°
1.3
10.04
05:00
Weather
16°
2.2
10.04
06:00
Weather
14°
1.5
10.04
07:00
Weather
13°
0.5
10.04
08:00
Weather
13°
0.5
10.04
09:00
Weather
12°
10.04
10:00
Weather
11°
0.1
10.04
11:00
Weather
10°
10.04
12:00
Weather
10°
10.04
13:00
Weather
10°
0.3
10.04
14:00
Weather
10°
0.6
5
10.04
15:00
Weather
10°
0.3
6
10.04
16:00
Weather
10°
0.4
7
10.04
17:00
Weather
10°
0.3
7
10.04
18:00
Weather
10°
0.7
6
10.04
19:00
Weather
10°
0.7
5
10.04
20:00
Weather
10°
0.5
10.04
21:00
Weather
10°
0.2
10.04
22:00
Weather
10°
0.1
10.04
23:00
Weather
11°
7
11.04
00:00
Weather
12°
6
11.04
01:00
Weather
14°
5

Temperature

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

Precipitation

2.2mm
0mm
03:00
0.5mm
04:00
1.3mm
05:00
2.2mm
06:00
1.5mm
07:00
0.5mm
08:00
0.5mm
10:00
0.1mm
13:00
0.3mm
14:00
0.6mm
15:00
0.3mm
16:00
0.4mm
17:00
0.3mm
18:00
0.7mm
19:00
0.7mm
20:00
0.5mm
21:00
0.2mm
22:00
0.1mm
02:00 13:00 01:00

Wind

6.9m/s
0m/s
02:00
4.4 m/s
03:00
4.4 m/s
04:00
4.8 m/s
05:00
3.2 m/s
06:00
2.8 m/s
07:00
3.5 m/s
08:00
3.5 m/s
09:00
3.1 m/s
10:00
2.8 m/s
11:00
3.1 m/s
12:00
2.8 m/s
13:00
2.8 m/s
14:00
5.1 m/s
15:00
5.8 m/s
16:00
6.9 m/s
17:00
6.6 m/s
18:00
5.9 m/s
19:00
5.2 m/s
20:00
4.5 m/s
21:00
4.3 m/s
22:00
4.4 m/s
23:00
6.6 m/s
00:00
6.2 m/s
01:00
5.3 m/s
02:00 13:00 01:00

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
49.3 km
12
4%

Measurement time: 2026-04-10 03:00

Calculated from PM2.5/PM10

O3
49.3 km
92.48 µg/m3
57.8%

Measurement time: 2026-04-10 03:00

source: OpenWeatherMap

PM2.5
49.3 km
2.99 µg/m3
3.6%

Measurement time: 2026-04-10 03:00

source: OpenWeatherMap

PM10
49.3 km
3.22 µg/m3
2.3%

Measurement time: 2026-04-10 03:00

source: OpenWeatherMap

NO2
49.3 km
2.81 µg/m3
1.4%

Measurement time: 2026-04-10 03:00

source: OpenWeatherMap

CO
49.3 km
0.15525 mg/m3
1.1%

Measurement time: 2026-04-10 03:00

source: OpenWeatherMap

SO2
49.3 km
0.55 µg/m3
0.2%

Measurement time: 2026-04-10 03:00

source: OpenWeatherMap

Info


Country: Japan
Region: Niigata
Latitude: 37.13333
Longitude: 138.76667


Solar Energy

Moderate
405.4 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Tōkamachi

About Air Quality in Tōkamachi

Air quality in Tōkamachi 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 Tōkamachi

  • 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 Tōkamachi?

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 Tōkamachi

If you're planning outdoor activities in Tōkamachi, 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.