Air Quality Early Warning System For Delhi

Bulletin & Message

Air Quality and Weather Bulletin for Delhi (28.11.2025)

दिल्लीकेलिएवायुगुणवत्ताऔरमौसमबुलेटिन (28.11.2025)

1. Past Weather and Air Quality Observation: The air quality over Delhi was in Very poor category with CPCB AQI 377 at 4 PM on 27.11.2025. No significant change in maximum temperatures and minimum temperatures during the past 24 hours over Delhi. Shallow fog occurred at isolated places over Delhi. The maximum and minimum temperatures over Delhi were around 23 to 26 °C and 08 to 10°C, respectively. The minimum temperatures are appreciably below normal (-3.1 to -5.0 °C) at a few places and below normal (-1.6 to -3.0) at isolated places and normal (-1.5 to 1.5) over the remaining parts of Delhi. The maximum temperatures were below normal (-1.6 to -3.0 °C) at isolated places and normal (-1.5 to 1.5°C) at many places over Delhi. Smoke was reported at Safdarjung and Palam Airports. Safdarjung airport recorded the lowest visibility of 500m from 0730 Hrs IST to 0800 Hrs IST on 28.11.2025, which thereafter improved, becoming 600m at 0800 Hrs IST. Palam airport recorded the lowest visibility of 600m from 0830 Hrs IST to 0900 Hrs IST on 28.11.2025, which thereafter improved, becoming 700m at 0930 Hrs IST. Mainly clear sky conditions with predominant surface wind from the northeast direction, with a wind speed up to 09 kmph, prevailed during the past 24 hours. Mainly clear sky conditions with wind from the southwest direction with a wind speed up to 09 kmph in early morning hours, gradually increasing up to 10 kmph from the northwest direction prevailed over the region in the forenoon today.

2. Mainly clear sky. Mist/Haze during the night. The maximum temperatures are likely to be in the range of 24 to 26°C. The maximum temperatures will be near normal over Delhi. The predominant surface wind is likely to be from the northwest direction, with wind speeds up to 10 kmph during the afternoon hours. The wind speed will decrease up to 05 kmph from the northwest direction during the evening and night on 28.11.2025. Mainly clear sky. shallow fog at most places with moderate fog at isolated places during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 25 to 27°C and 10 to 12°C respectively. The minimum temperatures will be near normal, and the maximum temperatures will be near normal over Delhi. The predominant surface wind is likely to be from the west direction with calm wind gradually increasing to up to 05 kmph during morning hours. The wind speed will increase, becoming less than 15 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 night on 29.11.2025. Partly cloudy sky. Shallow fog during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 24 to 26°C and 10 to 12°C respectively. The minimum temperatures will be near normal, and the maximum temperatures will be near normal over Delhi. The predominant surface wind is likely to be from the west-northwest direction with wind speed up to 05 kmph during morning hours. The wind speed will increase up to 15 kmph from the northwest direction in the afternoon. The wind speed will be less than 10 kmph from the northwest direction during the evening and night on 30.11.2025. Mainly clear sky. shallow to moderate fog during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the ranges of 23 °C to 25 °C and 8 °C to 10 °C, respectively. The minimum temperatures will be below normal (-0.3 to -2.3 °C), and the maximum temperature will be below normal (-1.0 to -3.0 °C) over Delhi. The predominant surface wind is likely to be from the west-northwest direction, with wind speeds of up to 10 kmph during the morning hours. The wind speed will increase up to 15 kmph from the northwest direction in the afternoon. The predominant surface wind is likely to be from the northwest direction with wind speed up to 05 kmph during the evening and night on 01.12.2025.

3. Predicted maximum mixing depth is likely to be 1050 m on 28.11.2025, 1450 m on 29.11.2025, 1000 m on 30.11.2025, and 1100 m on 01.12.2025 over Delhi. Ventilation index is likely to be 4500 m2/s on 28.11.2025, 8500 m2/s on 29.11.2025, 6000 m2/s on 30.11.2025 and 4500 m2/s on 01.12.2025 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 likely to be in the Very Poor category from 28.11.2025. The air quality is likely to be in the Very Poor category from 28.11.2025 to 01.12.2025. 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 (28.11.2025)

1. The overall air quality of Ahmedabad was observed in the Moderate category with AQI 177 on 27.11.2025.

2. The air quality is likely to be in the Moderate category from 28.11.2025 to 30.11.2025.

Air Quality Bulletin for Mumbai (28.11.2025)

1. The overall air quality of Mumbai was observed in the Moderate category with AQI 167 on 27.11.2025.

2. The air quality is likely to be in the Moderate category from 28.11.2025 to 30.11.2025.

Air Quality Bulletin for Pune (28.11.2025)

1. The overall air quality of Pune was observed in the Moderate category with AQI 144 on 27.11.2025.

2. The air quality is likely to be in the Moderate category from 28.11.2025 to 30.11.2025.

Air Quality Index at Delhi

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Forecast

Air Quality Index at Pune

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Air Quality Index at Mumbai

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Air Quality Index at Kolkata

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Air Quality Index at Bengaluru

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Air Quality Index at Lucknow

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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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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

2025-11-28 17:30

Temp 22.0 °C

Humidity 67 %

Wind 0 km/h