Air Quality Early Warning System For Delhi

Bulletin & Message

Air Quality and Weather Bulletin for Delhi

दिल्ली के लिए वायु गुणवत्ता और मौसम बुलेटिन

1. Past Weather and Air Quality Observation: The air quality over Delhi was in Very Poor category with CPCB AQI 366at 4 PM on 02.11.2025. There has been no large change in minimum temperatures and no large change in maximum temperatures during past 24 hours over Delhi. The maximum and minimum temperatures over Delhi were around 29 to 30 °C and 13 to 17°C respectively. The minimum temperatureswere near normal and maximum temperatureswerenear normal. Mainly clear sky conditions with predominant surface wind from the west direction with a wind speed up to 24 kmph prevailed during the past 24 hours. Mainly clear sky conditions with a wind speed of up to 12 kmph from the southwest direction prevailed over the region in the forenoon today.

2. Mainly clear sky. Mist/Haze during night. The maximum temperatures were in the range of 29 to 31 °C. The maximum temperature will be near normal. The predominant surface wind will likely to be from the northwest direction with a wind speed of up to 20 kmph during afternoon hours. The wind speed will decrease becoming less than 05 kmph from the north direction during the evening and nighton 03.11.2025. Partly cloudy sky. Smog/shallow fog during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 31 to 33°C and 17 to 19°C respectively. The minimum temperature will beabove normal up to 1 - 3^oC and the maximum temperature will be near normal. The predominant surface wind will likely to be from the southeast direction with a wind speed up to 10 kmph during morning hours. The wind speed will gradually increase becoming up to 15 kmph from the southeast direction in the afternoon.The wind speed will decrease becoming less than 10 kmph from the southeast direction during the evening and nighton04.11.2025.Partlycloudy sky. Smog/shallow fog during morning hours.The maximum and minimum temperatures over Delhi are likely to be in the range of 29 to 31°C and 17 to 19°C respectively. The minimum temperature will be above normal up to 1 - 3^oC and the maximum temperature will be near normal. The predominant surface wind will likely to be from the southeast direction with a wind speedup to 15 kmph during morning hours. The wind speed will increase becoming less than 18 kmph from the northwest direction in the afternoon.The wind speed will decrease becoming less than 10 kmph from the northwest direction during the evening and nighton 05.11.2025. Mainly clear sky. Smog/shallow fog during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 28 to 30°C and 16 to 18°C respectively. The minimum temperature will be above normal up to 1 – 2^oC and the maximum temperature will be near normal. The predominant surface wind will likely to befrom the west direction with a wind speed up to 10 kmph during morning hours. The wind speed will increase becoming less than 12 kmph from the northwest direction in the afternoon. The wind speed will decrease becoming less than 10 kmph from the northwest direction during the evening and nighton 06.11.2025.

3. Predicted maximum mixing depth is likely to be 2000 m on03.11.2025, 2600 m on04.11.2025, 2050 m on05.11.2025, and 2000 m on06.11.2025 over Delhi. Ventilation index is likely to be 17000 m2/s on 03.11.2025, 9000 m2/s on 04.11.2025, 6000 m2/s on 05.11.2025 and 6000 m2/s on 06.11.2025 over Delhi. The ventilation index lower than 6000 m2/s with average wind speed less than 10 kmph is unfavourable for dispersion of pollutants.

4. The air quality is very likely to be in the Very Poor category on 03.11.2025.The air quality is very likely to be in the Very Poor category on 04.11.2025 to 06.11.2025.The outlook for the subsequent 6 Days: The air quality is likely to be in the Very Poor category.

5. Detailed forecast analysis and verification can be seen at https://ews.tropmet.res.in.

Air Quality Bulletin for Ahmedabad (03.11.2025)

1. The overall air quality of Ahmedabad was observed in the Satisfactory category with AQI 63 on 02.11.2025.

2. The air quality is likely to be in the Satisfactory category from 03.11.2025 to 04.11.2025 and Moderate category on 05.11.2025.

Air Quality Bulletin for Mumbai (03.11.2025)

1. The overall air quality of Mumbai was observed in the Satisfactory category with AQI 53 on 02.11.2025.

2. The air quality is likely to be in the Satisfactory category from 03.11.2025 to 04.11.2025 and Moderate category on 05.11.2025.

Air Quality Bulletin for Pune (03.11.2025)

1. The overall air quality of Pune was observed in the Good category with AQI 42 on 02.11.2025.

2. The air quality is likely to be in the Good category from 03.11.2025, Satisfactory on 04.11.2025 and Moderate on 05.11.2025.

Air Quality Index at Delhi

Current AQI

Forecast

Air Quality Index at Pune

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Forecast

Air Quality Index at Mumbai

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Forecast

Air Quality Index at Kolkata

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Forecast

Air Quality Index at Bengaluru

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Forecast

Air Quality Index at Lucknow

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Forecast

Air Quality Index at Patna

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Air Quality Index at Hyderabad

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Air Quality Index at Ahmedabad

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Forecast

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Air Quality Index Range

Good AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk

Satisfactory AQI: Satisfactory (51 - 100)
Air quality is considered satisfactory, and air pollution poses little or no risk

Moderate AQI: Moderate (101 - 200)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution

Poor AQI: Poor for Sensitive Groups (201 - 300)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air

Very Poor AQI: Very Poor (301 - 400)
Health alert: everyone may experience more serious health effects

Severe AQI: Severe (401 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected

Current Weather at Delhi

2025-11-04 5.30

Temp 18 °C

Humidity 94 %

Wind 3.7 km/h