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Katihar air quality · Bihar, India

– US AQI

No monitor has reported here in the last few hours

Updated · CPCB

Pollutants in Katihar

Concentrations averaged across the city's stations. WHO multiples use the 2021 24-hour guidelines.

Katihar air quality history

Daily average, 36 days
012525013 Sept: 6314 Sept: 7415 Sept: 7116 Sept: 7217 Sept: 7018 Sept: 6319 Sept: 7020 Sept: 7021 Sept: 9922 Sept: 8323 Sept: 9024 Sept: 7625 Sept: 5826 Sept: 8527 Sept: 8028 Sept: 8329 Sept: 7030 Sept: 681 Oct: 622 Oct: 753 Oct: 694 Oct: 705 Oct: 716 Oct: 787 Oct: 678 Oct: 829 Oct: 8810 Oct: 8011 Oct: 8312 Oct: 8013 Oct: 7414 Oct: 7115 Oct: 7816 Oct: 7117 Oct: 7618 Oct: 8413 Sept18 Oct

The last 7 days averaged 76, about the same as the week before (79). None of the last 36 days was Good.

Weather in Katihar

DayForecastMaxMin
Mon 19Mainly clear sky becoming partly cloudy towards afternoon or evening32°23°
Tue 20Mainly clear sky becoming partly cloudy towards afternoon or evening31°22°
Wed 21Mainly Clear sky31°22°
Thu 22Mainly Clear sky31°22°
Fri 23Mainly Clear sky31°22°
Sat 24Mainly Clear sky31°22°
Sun 25Mainly Clear sky31°22°

India Meteorological Department (IMD) city forecast, issued 19 October 2026. All IMD warnings →

Nearby cities

India ranking

All 10 cities in Bihar →

India AQI ranking →

Katihar air quality: common questions

How has air quality in Katihar been recently?

Over the last 36 days with data, Katihar averaged NAQI 76. The worst day was 21 September at 99; the cleanest was 25 September at 58. 0 days were at Poor or worse.

Where does Katihar's air quality data come from?

From State & Central Pollution Control Board, Government of India · Center for Study of Science, Technology and Policy (CSTEP) · Aurassure's University Clean Air Network. Good Air does not estimate or adjust these readings.

Source: State & Central Pollution Control Board, Government of India · Center for Study of Science, Technology and Policy (CSTEP) · Aurassure's University Clean Air Network. Readings are published by the monitoring agency and may be revised.