Air Quality and Weather Bulletin for Delhi (11.11.2025)

दिल्लीकेलिएवायुगुणवत्ताऔरमौसमबुलेटिन (11.11.2025)

1. Past Weather and Air Quality Observation: The air quality over Delhi was in Very Poor category with CPCB AQI 362 at 4 PM on 10.11.2025. There has been no significant change in minimum and maximum temperatures during past 24 hours over Delhi. The maximum and minimum temperatures over Delhi were around 25 to 27 °C and 10 to 11°C respectively. The minimum temperatures were appreciably below normal over most places (-3.0 to -4.0°C) & markedly below normal at isolated places (-5.0 to -6.0°C). The maximum temperatures were below normal (-1.0 to -3.0°C) at many places and appreciably below normal ( -3.0 to - 4.0 °C) at isolated places over Delhi. Shallow fog was reported at Safdarjung and Palam airport. Safdarjung airport recorded the lowest visibility 600m from 0630 Hrs IST to 0830 Hrs IST on 11.11.2025 which thereafter improved becoming 700m at 0900 Hrs IST. Palam airport recorded the lowest visibility 700m from 0800 Hrs IST to 0930 Hrs IST on 11.11.2025 which thereafter improved becoming 800m at 1000 Hrs IST. Mainly clear sky conditions with predominant surface wind from the west direction with a wind speed up to 08 kmph prevailed during the past 24 hours. Mainly clear sky conditions with calm wind in early morning hours as gradually increase becoming up to 10 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 26 to 28°C. The maximum temperature will be below normal by 1 - 2°C. 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 10 kmph from the northwest direction during the evening and night on 11.11.2025. Mainly clear sky with smog/shallow fog during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 26 to 28°C and 10 to 12°C respectively. The minimum temperatures were below normal over most places (-1 to -3°C) & appreciably below normal at isolated places (-3 to -4°C) and the maximum temperature will be below normal up to 1 - 2^oC. The predominant surface wind will likely to be from the northwest direction with a wind speed up to 15 kmph during morning hours. The wind speed will gradually increase becoming up to 20 kmph from the northwest direction in the afternoon. The wind speed will decrease becoming less than 12 kmph from the northwest direction during the evening and night on 12.11.2025.Mainly clear sky with mist/haze during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 26 to 28°C and 10 to 12°C respectively. The minimum temperatures were below normal over most places (-1 to -3°C) & appreciably below normal at isolated places (-3 to -4°C) and the maximum temperature will be below normal up to 1 - 2^oC. The predominant surface wind will likely to be from the northwest direction with a wind speed up to 15 kmph during morning hours.  The wind speed will increase up to 20 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 13.11.2025. Mainly clear sky with mist/haze during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 25 to 27°C and 09 to 11°C respectively. The minimum temperatures were below normal over most places (-2 to -3°C) & appreciably below normal at isolated places (-3 to -4°C) and the maximum temperature will be below normal up to 1 - 3^oC. The predominant surface wind will likely to be from the northwest direction with a wind speed up to 10 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 08 kmph from the northwest direction during the evening and night on 14.11.2025.

3. Predicted maximum mixing depth is likely to be 1300 m on 11.11.2025, 1230 m on 12.11.2025, 1320 m on 13.11.2025, and 1250 m on 14.11.2025 over Delhi. Ventilation index is likely to be 8800 m2/s on 11.11.2025, 8500 m2/s on 12.11.2025, 9800 m2/s on 13.11.2025 and 6000 m2/s on 14.11.2025 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 Severe category on 11.11.2025. The air quality is very likely to be in the Very Poor category from 12.11.2025 to 14.11.2025. 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 (11.11.2025)

1. The overall air quality of Ahmedabad was observed in the moderate category with AQI 164 on 10.11.2025.

2. The air quality is likely to be in the Poor category on 11.11.2025 and Moderate category from 12.11.2025 to 13.11.2025.

Air Quality Bulletin for Mumbai (11.11.2025)

1. The overall air quality of Mumbai was observed in the Moderate category with AQI 128 on 10.11.2025.

2. The air quality is likely to be in the Moderate category from 11.11.2025 to 13.11.2025.

Air Quality Bulletin for Pune (11.11.2025)

1. The overall air quality of Pune was observed in the Moderate category with AQI 101 on 10.11.2025.

2. The air quality is likely to be in the Moderate category from 11.11.2025 to 13.11.2025.