Air Quality and Weather Bulletin for Delhi (13.01.2026)

दिल्ली के लिए वायु गुणवत्ता और मौसम बुलेटिन (13.01.2026)

1. Past Weather and Air Quality Observation: The air quality over Delhi was in Poor category with CPCB AQI 297 at 4 PM on 12.01.2026. There has been no large change in the minimum temperature and rise in the maximum temperature by 1-2°C during the past 24 hours over Delhi. The maximum temperatures over Delhi were around 16 to 20°C and the minimum temperatures are around 03-04°C, respectively. The minimum temperatures are appreciably below normal (-3.1 to -5.0) at many places and below normal (-1.6 to -3.0°C) at isolated places over Delhi. The maximum temperatures are appreciably below normal (-3.1 to -5.0) at isolated places, above normal (1.6 to 3.0) at isolated places and normal (-1.5°C to 1.5°C) over remaining parts of Delhi. Cold wave conditions have been realized at many places over Delhi. Safdarjung airport reported lowest visibility 600m from 0800 IST to 0830 IST which thereafter improved to 700m from 0900 IST onwards. Palam airport reported lowest visibility 600m from 0730 IST to 0830 IST which thereafter improved to 700m from 0900 IST of today, 09-01-2026. Mainly clear sky conditions with predominant surface wind from the northwest directions with a wind speed up to 08 kmph prevailed during the past 24 hours. Partly cloudy sky conditions associated with calm wind reaching upto 05 kmph from the west direction prevailed over the region in the forenoon today.

2. Partly cloudy sky. Mist/Haze during night. The maximum temperatures are likely to be in the range of 19°C to 21°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 less than 10kmph during the afternoon hours. The wind speed will decrease, becoming less than 08 kmph from the west direction during the evening and night on 13.01.2026. Mainly clear sky. Cold wave conditions at few places. Shallow to Moderate fog during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 19°C to 21°C and 03°C to 05°C respectively.  The minimum temperatures will be appreciably below normal (-3.1 to -5.0) at many places & below normal (-1.6 to -3.0°C) at isolated places and the maximum temperatures will near normal over Delhi. The predominant surface wind is likely to be from the west direction with wind speed less than 10kmph during the morning hours. The wind speed will increase becoming 12kmph from the northwest direction in the afternoon. The wind speed will decrease up to 10kmph from west direction during the evening and night on 14.01.2026. Partly cloudy sky. Shallow to Moderate fog during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the range of 20°C to 22°C and 04°C to 06°C respectively. The minimum will below normal (-1.6°C to -3.0°C) and the maximum temperatures will above normal (1.6°C to 3.0°C) over Delhi. The predominant surface wind is likely to be from the west direction with wind speed less than 10kmph during the morning hours. The wind speed will increase becoming 15kmph from the northwest direction in the afternoon. The wind speed will decrease up to 5kmph from west direction during the evening and night on 15.01.2026. Partly cloudy sky. Shallow to Moderate fog during morning hours. The maximum and minimum temperatures over Delhi are likely to be in the ranges of 21°C to 23°C and 06°C to 08°C respectively. The minimum temperatures will below normal (-1.6°C to -3.0°C) and the maximum temperatures will above normal (1.6°C to 3.0°C) over Delhi. The predominant surface wind is likely to be from the west direction with wind speed up to 10 kmph during the morning hours. The wind speed is likely to be from the northwest direction with wind reaching up to 15 kmph during afternoon hours. The wind speed will decrease gradually becoming less than 05 kmph from the northwest direction during evening and night on 16.01.2026.

3. Predicted maximum mixing depth is likely to be 900m on 13.01.2026, 850m on 14.01.2026, 800 m on 15.01.2026, and 750 m on 16.01.2026 over Delhi. Ventilation index is likely to be 4500 m2/s on 13.01.2026, 4500 m2/s on 14.01.2026, 4000 m2/s on 15.01.2026 and 3200 m2/s on 16.01.2026 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 on 13.01.2026. The air quality is likely to be in the Very Poor category from 14.01.2026 to 16.01.2026. 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 (13.01.2026)

1. The overall air quality of Ahmedabad was observed in the Moderate category with AQI 150 on 12.01.2026.

2. The air quality is likely to be in the Moderate category from 13.01.2026 to 15.01.2026.

Air Quality Bulletin for Mumbai (13.01.2026)

1. The overall air quality of Mumbai was observed in the Moderate category with AQI 110 on 12.01.2026.

2. The air quality is likely to be in the Moderate category from 13.01.2026 to 15.01.2026.

Air Quality Bulletin for Pune (13.01.2026)

1. The overall air quality of Pune was observed in the Moderate category with AQI 156 on 12.01.2026.

2. The air quality is likely to be in the Moderate category from 13.01.2026 to 15.01.2026.