Delhi Sees Light Rainfall, Marginal AQI Improvement as Fog Lingers

Intermittent showers bring relief but foggy conditions and poor air quality persist in the capital, with weather fluctuations predicted.

February 4, 2025: Delhi witnessed light rainfall early on Tuesday, with intermittent drizzles expected throughout the day, according to the India Meteorological Department (IMD). The showers are due to a fresh western disturbance impacting the region. However, the rainfall is likely to disappear by Wednesday, February 5, with dense fog expected to intensify in isolated parts of the national capital.

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Temperature and Humidity

The IMD reported a minimum temperature of 12 degrees Celsius in Delhi, which is above the average for February. The maximum temperature is expected to reach 21 degrees Celsius. Delhi also recorded a high humidity level of 96%, contributing to the weather’s dampness.

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The IMD predicts a short-term rise in minimum temperatures across northwest India for the next two days, followed by a gradual drop of 2-3 degrees over the subsequent three days. Weather fluctuations are expected to resume as another active western disturbance affects northern India starting February 8.

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AQI and Air Quality Measures

The rainfall has led to a slight improvement in Delhi’s Air Quality Index (AQI), although it remains in the poor category. As per the Central Pollution Control Board (CPCB) data recorded at 7 a.m. on Tuesday, AQI levels stood at:

Chandni Chowk: 265
ITO: 232
Lodhi Road: 132
Sri Aurobindo Marg: 228

Last week, the Commission for Air Quality Management (CAQM) activated Stage 3 measures of the Graded Response Action Plan (GRAP) after the AQI surpassed 350. These measures include:

Restrictions on non-essential construction and demolition.
Suspension of mining operations.
Closure of stone crushers.
Banning older diesel vehicles.

Regional Weather Outlook

The IMD has also predicted rainfall across the western Himalayan region and northwest India until February 5. Despite the brief respite brought by the rain, foggy conditions remain prevalent in parts of Delhi, and visibility is expected to worsen as the showers taper off.