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Obanazawa (Yamagata) (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
10°C
Rain
Humidity
97.7%
Wind
4 m/s
Pressure
1007.1 hPa
Direction
117°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
10° / 14°
Precip.
21.8mm
Max wind
6 m/s

Hourly Forecast

09.04
Now
Weather
10°
0.4
10.04
00:00
Weather
11°
0.7
10.04
01:00
Weather
12°
1.1
10.04
02:00
Weather
13°
1.8
10.04
03:00
Weather
13°
3.4
10.04
04:00
Weather
13°
1.5
10.04
05:00
Weather
14°
4.7
10.04
06:00
Weather
14°
2.1
10.04
07:00
Weather
14°
1.1
10.04
08:00
Weather
14°
0.3
10.04
09:00
Weather
13°
3
10.04
10:00
Weather
13°
10.04
11:00
Weather
13°
0.1
10.04
12:00
Weather
13°
0.3
10.04
13:00
Weather
13°
0.2
10.04
14:00
Weather
13°
10.04
15:00
Weather
13°
0.2
6
10.04
16:00
Weather
13°
0.3
5
10.04
17:00
Weather
12°
0.2
5
10.04
18:00
Weather
12°
0.2
6
10.04
19:00
Weather
11°
0.2
6
10.04
20:00
Weather
11°
6
10.04
21:00
Weather
11°
6
10.04
22:00
Weather
12°
5

Temperature

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

Precipitation

4.7mm
0mm
23:00
0.4mm
00:00
0.7mm
01:00
1.1mm
02:00
1.8mm
03:00
3.4mm
04:00
1.5mm
05:00
4.7mm
06:00
2.1mm
07:00
1.1mm
08:00
0.3mm
09:00
3mm
11:00
0.1mm
12:00
0.3mm
13:00
0.2mm
15:00
0.2mm
16:00
0.3mm
17:00
0.2mm
18:00
0.2mm
19:00
0.2mm
23:00 10:00 22:00

Wind

6m/s
0m/s
23:00
3.8 m/s
00:00
4.1 m/s
01:00
4.2 m/s
02:00
4.4 m/s
03:00
3.8 m/s
04:00
3.2 m/s
05:00
3.2 m/s
06:00
3 m/s
07:00
2.6 m/s
08:00
2.3 m/s
09:00
2.4 m/s
10:00
3.1 m/s
11:00
2.7 m/s
12:00
3.3 m/s
13:00
3.6 m/s
14:00
4.6 m/s
15:00
5.7 m/s
16:00
5.2 m/s
17:00
5.4 m/s
18:00
6 m/s
19:00
5.9 m/s
20:00
5.8 m/s
21:00
5.5 m/s
22:00
5.3 m/s
23:00 10:00 22:00

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
89.7 km
53
17.7%

Measurement time: 2026-04-09 23:10

Calculated from PM2.5/PM10

O3
89.7 km
89.94 µg/m3
56.2%

Measurement time: 2026-04-09 23:10

source: OpenWeatherMap

PM2.5
89.7 km
13.51 µg/m3
16.1%

Measurement time: 2026-04-09 23:10

source: OpenWeatherMap

PM10
89.7 km
16.31 µg/m3
11.6%

Measurement time: 2026-04-09 23:10

source: OpenWeatherMap

NO2
89.7 km
13.34 µg/m3
6.7%

Measurement time: 2026-04-09 23:10

source: OpenWeatherMap

SO2
89.7 km
8.97 µg/m3
2.6%

Measurement time: 2026-04-09 23:10

source: OpenWeatherMap

CO
89.7 km
0.21148 mg/m3
1.5%

Measurement time: 2026-04-09 23:10

source: OpenWeatherMap

Info


Country: Japan
Region: Yamagata
Latitude: 38.60333
Longitude: 140.40194


Solar Energy

Moderate
400.5 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Obanazawa

About Air Quality in Obanazawa

Air quality in Obanazawa 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 Obanazawa

  • 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 Obanazawa?

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 Obanazawa

If you're planning outdoor activities in Obanazawa, 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.