Archive · 22 Dec 2025
Cold Wave and Dense Fog Disrupt North India
On December 21, 2025, a very cold wave and dense fog hit North India, especially Delhi.
The weather is very foggy, making it hard to see and causing many flights, trains, and buses to be delayed.
The air quality is also very bad, with some areas having 'severe' pollution levels.
The government has taken steps to improve air quality, but people are still worried about traveling safely and the health effects of the pollution.
The fog is expected to last until December 24, so people are advised to be careful and stay updated on the weather.
A cold wave and dense fog have hit North India, causing significant disruptions in transportation and daily life.
The Air Quality Index (AQI) in Delhi remains in the 'very poor' category, with some areas experiencing 'severe' conditions.
Flights, trains, and buses are facing delays due to low visibility, with commuters advised to exercise caution.
The government has invoked GRAP Stage IV measures to combat air pollution, including banning non-essential construction and restricting certain diesel vehicles.
The fog is expected to persist until December 24, with similar conditions forecasted for the following days.
- Who
- Residents and travelers in North India, particularly Delhi
- What
- A cold wave and dense fog have caused significant disruptions in transportation and daily life, with air quality remaining in the 'very poor' category.
- When
- 21 December 2025, with alerts extending till 24 December
- Where
- North India, including Delhi, Punjab, Haryana, Uttar Pradesh, Bihar, Jharkhand, Odisha, and Madhya Pradesh
- Why
- The cold wave has led to hazy mornings, thick mist, and a sharp drop in temperatures, affecting visibility and transportation. The government has implemented GRAP Stage IV measures to mitigate air pollution.
- Date
- 21 December 2025
- Affected Regions
- North India, including Delhi, Punjab, Haryana, Uttar Pradesh, Bihar, Jharkhand, Odisha, and Madhya Pradesh
- Weather Conditions
- Dense to very dense fog, hazy mornings, sharp temperature drop
- Disruptions
- Flights, trains, buses, and other public transport
- Air Quality Index (AQI)
- 377 (Very Poor), with some areas in 'Severe' category
- Temperature
- Minimum: 8-10°C, Maximum: 16-22°C
- Humidity
- 100% at 5:30 pm
- Source
- Times Now, PTI, CPCB, IMD, IITM
Sources
Weather Today 21 December 2025 Live Updates: Cold Wave Hits Delhi: Flights, Trains Face Delays
Delhi Schools Tomorrow Live Updates: Schools Closed, Timings Changed in These States for 21st December
IMD issues dense fog alert for these districts till December 23; Delhi AQI remains in ‘very poor’ category
Delhi's weather forecast: Here's what to expect over the next five days
Himachal records driest December ever, zero rainfall raises concern for crops and tourism - Telegraph India
Haze To Disrupt Flights And Trains For 2 More Days As Fog Lingers Over North India
Over 500 Flights and 50 Trains Disrupted as Poor AQI, Smog Persist in Delhi-NCR
Delhi chokes on ‘very poor’ air, relief unlikely this week
Weather today: Dense fog envelops Delhi, Punjab, Haryana, UP, Madhya Pradesh; IMD warns of cold day conditions
Delhi Battles Severe Smog As Air Quality Plummets To 'Very Poor' & 'Severe' Levels
Mumbai Weather Update For 22 Dec, 2025: City Wakes Up To Sunny Skies, Thin Haze Persists; AQI Remains In Poor Range At 181
Madhya Pradesh December 22, 2025 Weather Updates: Visibility Drops To 50 Metres As Dense Fog Grips State; Chill To Intensify Further
Fog disrupts flight operations, causes delays & cancellations across northern India
IndiGo, SpiceJet flights from Srinagar cancelled due to dense fog
