Delhi is currently grappling with its first cold wave of the season, marked by a significant drop in temperatures and a thick blanket of smog that has disrupted air travel in the region. On December 20, 2025, authorities reported the cancellation of 129 flights at Indira Gandhi International Airport due to the adverse weather conditions, which have been exacerbated by the city’s persistent air quality issues.
The cold wave, characterized by temperatures plummeting to around 5 degrees Celsius (41 degrees Fahrenheit), has prompted health advisories from local authorities. The India Meteorological Department (IMD) classified the current weather conditions as a cold wave, which is defined as a period of abnormally low temperatures relative to the season. This phenomenon is not uncommon in Delhi during the winter months, but the intensity of this year’s cold wave has raised concerns among residents and officials alike.
The dense smog enveloping the city has been attributed to a combination of factors, including low temperatures, high humidity, and stagnant air. These conditions have led to a significant increase in the concentration of particulate matter in the atmosphere, resulting in hazardous air quality levels. The Air Quality Index (AQI) in several parts of Delhi has soared above 300, categorizing it as “very poor” and posing serious health risks, particularly for vulnerable populations such as children, the elderly, and those with pre-existing respiratory conditions.
The impact of the cold wave and smog extends beyond health concerns. The cancellation of flights has caused significant disruptions for travelers, with many passengers left stranded at the airport or forced to seek alternative transportation. Airlines have been working to accommodate affected passengers, but the backlog of cancellations and delays has created a logistical challenge. The airport authorities have advised travelers to check the status of their flights before heading to the airport and to allow for extra time due to potential delays.
This situation is part of a broader pattern that Delhi experiences each winter, where a combination of meteorological and anthropogenic factors contributes to deteriorating air quality. The city’s geography, with its proximity to industrial areas and heavy vehicular traffic, exacerbates the problem. Additionally, the burning of crop residue in neighboring states during the harvest season contributes significantly to the pollution levels in Delhi, particularly in the months leading up to winter.
In response to the ongoing air quality crisis, the Delhi government has implemented various measures over the years, including the introduction of odd-even vehicle rationing schemes, increased monitoring of industrial emissions, and campaigns to promote public transportation. However, these initiatives have met with mixed results, and the city continues to struggle with air pollution, especially during the winter months when weather conditions are less favorable for dispersing pollutants.
The implications of the current cold wave and smog are far-reaching. Health experts warn that prolonged exposure to poor air quality can lead to a range of respiratory issues, cardiovascular diseases, and other health complications. The economic impact is also significant, as disruptions in air travel can affect tourism, business travel, and logistics, further straining the already challenged economy of the region.
As the cold wave persists, residents are advised to take precautions, including wearing masks outdoors, using air purifiers indoors, and limiting outdoor activities, especially for vulnerable groups. The IMD has indicated that the cold wave conditions may continue for several days, with temperatures expected to remain low, further complicating the air quality situation.
In conclusion, the first cold wave of the season in Delhi, coupled with dense smog and flight cancellations, underscores the ongoing challenges the city faces regarding air quality and public health. As authorities continue to monitor the situation, the need for effective long-term solutions to address the root causes of air pollution remains critical. The current weather conditions serve as a reminder of the urgent need for coordinated efforts to improve air quality and protect the health of residents in the capital.
