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Samāstipur (Bihar) (IN)

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

Partly cloudy
34°C
Partly cloudy
Humidity
59.4%
Wind
1 m/s
Pressure
1004.3 hPa
Direction
115°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
23° / 36°
Precip.
0.3mm
Max wind
3.9 m/s

Hourly Forecast

20.04
Now
Weather
34°
20.04
07:00
Weather
35°
20.04
08:00
Weather
36°
20.04
09:00
Weather
36°
0.3
20.04
10:00
Weather
35°
20.04
11:00
Weather
35°
20.04
12:00
Weather
34°
20.04
13:00
Weather
30°
20.04
14:00
Weather
29°
20.04
15:00
Weather
28°
20.04
16:00
Weather
28°
20.04
17:00
Weather
27°
20.04
18:00
Weather
27°
20.04
19:00
Weather
26°
20.04
20:00
Weather
26°
20.04
21:00
Weather
25°
20.04
22:00
Weather
25°
20.04
23:00
Weather
24°
21.04
00:00
Weather
23°
21.04
01:00
Weather
25°
21.04
02:00
Weather
28°
21.04
03:00
Weather
30°
21.04
04:00
Weather
32°
21.04
05:00
Weather
34°

Temperature

36°C
23°C
06:00
34°C
07:00
35°C
08:00
36°C
09:00
36°C
10:00
35°C
11:00
35°C
12:00
34°C
13:00
30°C
14:00
29°C
15:00
28°C
16:00
28°C
17:00
27°C
18:00
27°C
19:00
26°C
20:00
26°C
21:00
25°C
22:00
25°C
23:00
24°C
00:00
23°C
01:00
25°C
02:00
28°C
03:00
30°C
04:00
32°C
05:00
34°C
06:00 17:00 05:00

Precipitation

0.3mm
0mm
09:00
0.3mm
06:00 17:00 05:00

Wind

3.9m/s
0m/s
06:00
1.3 m/s
07:00
1.1 m/s
08:00
1.3 m/s
09:00
2.5 m/s
10:00
3.9 m/s
11:00
2.9 m/s
12:00
1.2 m/s
13:00
1.6 m/s
14:00
2 m/s
15:00
1.6 m/s
16:00
1.5 m/s
17:00
1.5 m/s
18:00
2.7 m/s
19:00
1.9 m/s
20:00
1.7 m/s
21:00
1.8 m/s
22:00
2.1 m/s
23:00
1.7 m/s
00:00
0.7 m/s
01:00
1 m/s
02:00
0.7 m/s
03:00
0.8 m/s
04:00
1.9 m/s
05:00
3 m/s
06:00 17:00 05:00

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
18.2 km
151
50.3%

Measurement time: 2026-04-20 05:40

Calculated from PM2.5/PM10

O3
18.2 km
123.44 µg/m3
77.1%

Measurement time: 2026-04-20 05:40

source: OpenWeatherMap

PM2.5
18.2 km
55.69 µg/m3
66.3%

Measurement time: 2026-04-20 05:40

source: OpenWeatherMap

PM10
18.2 km
82.71 µg/m3
59.1%

Measurement time: 2026-04-20 05:40

source: OpenWeatherMap

SO2
18.2 km
10.18 µg/m3
2.9%

Measurement time: 2026-04-20 05:40

source: OpenWeatherMap

CO
18.2 km
0.35978 mg/m3
2.6%

Measurement time: 2026-04-20 05:40

source: OpenWeatherMap

NO2
18.2 km
3.21 µg/m3
1.6%

Measurement time: 2026-04-20 05:40

source: OpenWeatherMap

Info


Country: India
Region: Bihar
Latitude: 25.86222
Longitude: 85.77953


Solar Energy

Moderate
465.2 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Samāstipur

About Air Quality in Samāstipur

Air quality in Samāstipur 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 Samāstipur

  • 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 Samāstipur?

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 Samāstipur

If you're planning outdoor activities in Samāstipur, 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.