Weather Update: Dense fog and hazardous air grip Delhi; Know travel advice, safety measures

Delhi wakes up under a thick blanket of fog and hazardous air as AQI nears ‘severe’ levels. GRAP Stage 4 measures are in force, traffic slows, flights delayed find out how the capital is battling winter pollution and smog today.

Post Published By: Ayushi Bisht
Updated : 20 December 2025, 6:50 AM IST
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New Delhi: The National Capital and adjoining regions woke up to dense morning fog with significantly reduced visibility, prompting a Yellow Alert from the India Meteorological Department (IMD). The fog is expected to persist through the morning and could last for the next few days, increasing travel disruption on roads and at airports.

IMD has warned that dense to very dense fog will continue in northern India including Delhi, Punjab, Haryana and Uttar Pradesh into the

The minimum temperature early Saturday was around 7-10°C, with highs expected near 22- 23°C under mostly cloudy skies. Light winds and calm conditions are forecast, which will allow pollutants and fog to linger close to the ground.
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‘Strict Measures Must’: Centre gives air ultimatum to Delhi-NCR authorities as AQI hits ‘very poor’ mark

Air Quality Remains in ‘Very Poor’ to ‘Severe’ Zone

The Air Quality Index (AQI) in Delhi-NCR continued to show dangerous levels of pollution on Saturday. Several monitoring stations recorded AQI figures in the “very poor” (301–400) category, with pockets creeping toward “severe” (401–500+) levels.

The prolonged smog-fog mix often referred to as “smog” is trapping pollutants near the surface, aggravating health risks for residents, particularly the young, elderly and those with respiratory conditions. Experts say stagnant winds and calm conditions are major contributors to the pollution buildup.

GRAP Stage Measures and Health Advisories

In response to the hazardous air quality, authorities have implemented measures under the Graded Response Action Plan (GRAP) to curb emissions and protect public health. Last week, parts of the region saw indicators reach levels that triggered stricter controls, including restrictions on construction activity and heavy vehicle movement.

Experts and officials continue to urge residents to limit outdoor exposure, use masks, and check air quality updates frequently as the cold, foggy conditions suppress pollutant dispersion.

Centre issues guidelines for airlines as dense fog wreaks havoc at Delhi’s IGI airport; Details inside

Travel and Daily Life Affected

Dense fog combined with heavy pollution has reduced visibility on major roads across the capital and its suburbs, causing slower commutes and increased travel times. At Indira Gandhi International (IGI) Airport, flights are operating under low‑visibility procedures, leading to delays and advisories for travellers to confirm schedules before departure.

Delhi’s pollution woes are expected to persist in the coming days unless wind patterns change or rainfall arrives to clear the air. Local authorities are monitoring conditions closely as residents brace for another day under the thick grey winter haze.

 

Location : 
  • New Delhi

Published : 
  • 20 December 2025, 6:50 AM IST