AIR QUALITY EARLY WARNING SYSTEM FOR DELHI
MINISTRY OF EARTH SCIENCES, GOVT. OF INDIA
पृथ्वी विज्ञान मंत्रालय, भारत सरकार
(Project By : Indian Institute of Tropical Meteorology, Pune)

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 Air Quality and Weather Bulletin for Delhi (20.06.2025)

दिल्लीकेलिएवायुगुणवत्ताऔरमौसमबुलेटिन (20.06.2025)

1. Past Weather and Air Quality Observation: The air quality over Delhi was in Satisfactory category with CPCB AQI 89 at 4 PM on 19.06.2025. There has been a fall in the minimum temperature up to 1°C and rise in the maximum temperature up to 1 - 2°C over Delhi/NCR during the past 24 hours. The maximum and minimum temperatures over Delhi were around 34 to 36°C and 24 to 27° respectively. The minimum temperature was below normal up to 1 - 4°C and the maximum temperature was below normal up to 2 - 4°C. Generally cloudy sky conditions with predominant surface wind from the southeast direction with wind speeds up to 16 kmph prevailed during the past 24 hours. Partly cloudy sky conditions with wind speed less than 15 kmph from the east direction prevailed over the region in the forenoon today.

2. Generally cloudy sky. Very light to light rain/thunderstorm/lighting with gusty winds 30 - 40 kmph temporary reaching 50 kmph during thunderstorm towards evening/night. The maximum temperatures over Delhi are likely to be in the range of 36 to 38°C. The maximum temperature will be below normal up to 1 - 2°C. The predominant surface wind will likely be from the southeast direction with a wind speed of less than 25 kmph in the afternoon. The wind speed will gradually decrease becoming 10-15 kmph from the southeast direction during evening and night on 20.06.2024. Generally cloudy sky. Very light to light rain/thunderstorm/lighting accompanied with gusty winds 30 - 40 kmph temporary reaching 50 kmph during thunderstorm. The maximum and minimum temperatures over Delhi are likely to be in the range of 35 to 37°C and 26 to 28°C respectively. The minimum temperature will be near normal and the maximum temperature will be below normal up to 1 - 3°C. The predominant surface wind will likely be from the southeast direction with a wind speed of less than 15 kmph during the morning hours. The wind speed will gradually decrease becoming 10-12 kmph from the southeast direction in the afternoon. It will increase becoming less than 15 kmph from the southeast direction during evening and night on 21.06.2025. Generally cloudy sky. Moderate to heavy rain/thunderstorm/lighting accompanied with gusty winds 30 - 40 kmph temporary reaching 50 kmph during thunderstorm. The maximum and minimum temperatures over Delhi are likely to be in the range of 34 to 36°C and 26 to 28°C respectively. The minimum temperature will be below normal up to 1 - 2°C and the maximum temperature will be below normal up to 2 - 4°C. The predominant surface wind will likely be from the southwest direction with a wind speed of less than 15 kmph during the morning hours. The wind speed will gradually increase becoming less than 25 kmph from the southeast direction in the afternoon. It will decrease to less than 15 kmph from the northeast direction during the evening and night on 22.06.2025. Generally cloudy sky. Moderate to heavy rain/thunderstorm/lighting accompanied with gusty winds 30 - 40 kmph temporary reaching 50 kmph during thunderstorm. The maximum and minimum temperatures over Delhi are likely to be in the range of 34 to 36°C and 25 to 27°C respectively. The minimum temperature will be below normal up to 1 - 3°C and the maximum temperature will be below normal up to 2 - 4°C. The predominant surface wind will likely be from the southeast direction with a wind speed of less than 25 kmph during the morning hours. The wind speed will gradually decrease becoming less than 16 kmph from the southeast direction in the afternoon. It will increase to less than 25 kmph from the southeast direction during the evening and night on 23.06.2025.

3. Predicted maximum mixing depth is likely to be 1900 m on 20.06.2025, 2400 m on 21.06.2025, 2000 m on 22.06.2025, and 1200 m on 23.06.2025 over Delhi. Ventilation index is likely to be 12000 m2/s on 20.06.2025, 9000 m2/s on 21.06.2025, 7000 m2/s on 22.06.2025 and 4000 m2/s on 23.06.2025 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 Satisfactory category on 20.06.2025. The air quality is likely to be in the Satisfactory category from 21.06.2025 to 23.06.2025.  The outlook for the subsequent 6 Days: The air quality is likely to be in the Satisfactory to Moderate category.

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

 

Air Quality Bulletin for Ahmedabad (20.06.2025)

1. The overall air quality of Ahmedabad was observed in the Satisfactory category with AQI 62 on 19.06.2025.

2. The air quality is likely to be in the Satisfactory category from 20.06.2025 to 22.06.2025.

Air Quality Bulletin for Mumbai (20.06.2025)

1. The overall air quality of Mumbai was observed in the Good category with AQI 42 on 19.06.2025.

2. The air quality is likely to be in the Satisfactory category from 20.06.2025 to 22.06.2025.

Air Quality Bulletin for Pune (20.06.2025)

1. The overall air quality of Pune was observed in the Good category with AQI 47 on 19.06.2025.

2. The air quality is likely to be in the Good category on 20.06.2025 and Satisfactory category from 21.06.2025 to 22.06.2025.

Air Quality Index at Delhi
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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
2025-06-20 17.30
Temp 34.4 °C
Humidity 66 %
Wind 9.3 km/h
Air Quality Forecast Over India
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