Air Quality and Weather Bulletin for Delhi (08.10.2026)

दिल्ली के लिए वायु गुणवत्ता और मौसम बुलेटिन (08.10.2026)

 1. Past Weather and Air Quality Observation: The air quality over Delhi was in the Moderate category with CPCB AQI 136 at 4PM on 07.10.2026. There has been fall in maximum temperatures by 1°C and fall in minimum temperatures by 1°C over Delhi during the past 24 hours. The maximum temperatures were around 34-36°C and the minimum temperatures are in the range 20-24°C respectively during past 24 hours over Delhi. The minimum temperatures are appreciably above normal (3.1°C to 5.0°C) at a few places, above normal (1.6°C to 3.0°C) at isolated places, below normal (-1.6°C to -3.0°C) at isolated places and normal (-1.5°C to 1.5°C) over remaining parts of Delhi. The maximum temperatures were above normal (1.6°C to 3.0°C) at isolated places and normal (-1.5°C to 1.5°C) over remaining parts of Delhi.  Mainly clear sky with surface wind speed 20 kmph from the northwest direction prevailed over Delhi during past 24 hours. Mainly clear sky with surface wind speeds up to 15 kmph from the southeast direction likely to prevail during forenoon over the region today.

 2. Mainly clear sky becoming partly cloudy sky towards afternoon/evening. The maximum temperatures over Delhi are likely to be in the range of 33-35°C. The maximum temperatures will be near normal (-1.5°C to 1.5°C) at most places over Delhi. The predominant surface wind is likely to be from the northwest direction with surface wind speed reaching up to 15 kmph during the afternoon. The surface wind speed will decrease becoming up to 12 kmph from the east direction during evening and night hours on 08.10.2026. Partly cloudy sky. The maximum and minimum temperatures over Delhi are likely to be in the range of 31°C to 33°C and 22°C to 24°C, respectively. The minimum temperature will be above normal (1.6°C to 3.0°C) at most places, and the maximum temperatures will be below normal (-1.6°C to -3.0°C) at most places over Delhi. The predominant surface wind is likely to be from the southeast direction with wind speed reaching up to 15 kmph during the morning hours. The surface wind speed will decrease becoming up to 12 kmph from the west direction during afternoon. The surface wind speed will increase becoming up to 18 kmph from the southeast direction during evening and night hours on 09.10.2026. Partly cloudy sky. The maximum and minimum temperatures over Delhi are likely to be in the range of 31°C to 33°C and 20°C to 22°C, respectively. The minimum temperature will be near normal (-1.5°C to 1.5°C) at most places, and the maximum temperatures will be below normal (-1.6°C to -3.0°C) at most places over Delhi. The predominant surface wind is likely to be from the southeast direction with wind speed reaching up to 20 kmph during the morning hours. The surface wind speed will increase becoming up to 22 kmph from the southeast direction during afternoon. The surface wind speed will decrease becoming up to 20 kmph from the east direction during evening and night hours on 10.10.2026. Partly cloudy sky. The maximum and minimum temperatures over Delhi are likely to be in the range of 31°C to 33°C and 21°C to 23°C, respectively. The minimum temperature will be above normal (1.6°C to 3.0°C) at most places, and the maximum temperatures will be below normal (-1.6°C to -3.0°C) at most places over Delhi. The predominant surface wind is likely to be from the southeast direction with wind speed reaching up to 15 kmph during the morning hours. The surface wind speed will increase becoming up to 20 kmph from the southeast direction during afternoon. The surface wind speed will decrease becoming up to 18 kmph from the east direction during evening and night hours on 11.10.2026.

 3. Predicted maximum mixing depth is likely to be 3300m on 08.10.2026, 3500m on 09.10.2026, 2000m on 10.10.2026, and 1900m on 11.10.2026 over Delhi. The ventilation index is likely to be 25500 m2/s on 08.10.2026, 18500 m2/s on 09.10.2026, 3500 m2/s on 10.10.2026 and 5500 m2/s on 11.10.2026 over Delhi. The ventilation index lower than 6000 m2/s with an average wind speed of less than 10 kmph is unfavorable for the dispersion of pollutants.

 4. Air quality is likely to be in the Moderate category on 08.10.2026. The air quality is likely to be in the Moderate category from 09.10.2026 to 11.10.2026. The outlook for the subsequent 6 Days: The air quality is likely to be in the Moderate to Poor category.

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