Delhi Records Coldest October Day In Four Years As Rain Brings Early Winter Chill

Delhi-NCR woke up to a distinctly wintry morning on Friday, October 30, as overnight rain brought a sharp drop in temperatures across the national capital and neighbouring cities. From rain-soaked streets in Delhi to cooler conditions in Noida, Ghaziabad, Gurugram, and Faridabad, the change in weather offered an early taste of the season usually associated with winter getaways to Shimla and Manali. The showers also brought some welcome relief from pollution, with Delhi's Air Quality Index (AQI) falling into the Moderate category in the early hours of the morning.

The sudden change follows several hours of rain and thunderstorms on Thursday night, accompanied by overcast skies and gusty winds. While the cooler weather has prompted questions about whether winter is arriving early this year, the India Meteorological Department (IMD) expects the current spell of unsettled weather to ease over the weekend. For now, residents can expect a wet Friday, followed by clearer skies as November begins.

Rain Brings Early Winter Chill

The rainfall has made a noticeable difference to Delhi's temperatures, bringing daytime conditions closer to what residents typically associate with the onset of winter. According to meteorological observations, the Safdarjung base observatory recorded a maximum temperature of 25.4 degrees Celsius on Thursday, October 29, which was 5.6 degrees below the seasonal average. It was the lowest October maximum temperature recorded at the observatory since 2022.

The overnight showers affected several parts of the capital, including the areas around Hazrat Nizamuddin Railway Station and Jamia Millia Islamia. Delhi, Noida, Ghaziabad, Gurugram, and Faridabad experienced rain and cloudy skies, with the cooler air offering a welcome break from the warmer conditions earlier in the month.

However, a sudden temperature drop following rainfall does not necessarily signal the arrival of winter. Cloud cover reduces daytime heating, while rain and associated weather systems can bring a temporary change in temperatures. As skies clear over the weekend, daytime conditions could become warmer again, even if mornings and evenings remain cooler.

The IMD had issued a yellow alert for Delhi and neighbouring NCR districts on October 29, warning of rain, thunderstorms, and lightning over the following 24 to 48 hours.

Air Quality Sees Relief

Alongside the temperature drop, the rain has offered some respite from Delhi's persistent air pollution. According to the Central Pollution Control Board (CPCB), the capital's AQI stood at 133 at 4 am on Friday, placing it in the Moderate category. The reading marked an improvement from levels above 200, which had put the city in the Poor category on Wednesday and Thursday.

Rain can help remove suspended particles from the atmosphere, while gusty winds can disperse pollutants. However, the improvement may not last once the weather stabilises. As rainfall subsides and wind speeds decrease, pollution levels could rise again, particularly with winter approaching and conditions becoming more favourable for pollutants to accumulate near the ground.

For residents, the immediate improvement offers some breathing room, but it is too early to consider the pollution problem resolved. The coming days will provide a clearer picture of whether the better air quality can be sustained.

When Will The Rain Stop?

According to the IMD forecast, Delhi-NCR could continue to experience light to moderate showers on Friday, October 30, with isolated areas potentially receiving heavier rainfall. The Regional Meteorological Centre in New Delhi has forecast generally cloudy skies and one or two spells of rain across Delhi and neighbouring cities.

Conditions are expected to improve from Saturday, October 31, when skies are likely to become partly cloudy. November 1 and 2 are forecast to bring mainly clear skies, with no significant weather warnings indicated for the region. Residents can therefore expect the current wet spell to ease by the weekend, although cooler mornings and evenings may persist.

The wider weather system is expected to bring heavier rainfall to other parts of the country. On October 30, isolated extremely heavy showers are forecast over north Bihar, Chhattisgarh, and Odisha, while eastern Uttar Pradesh, Jharkhand, Sub-Himalayan West Bengal, and Sikkim could receive heavy to very heavy rainfall. The IMD has also flagged a potential flash flood risk in vulnerable areas, including Sonbhadra, Ghazipur, and Ballia in Uttar Pradesh.

Southern India is also likely to see increased rainfall between November 2 and 4. Coastal Karnataka, Kerala, South Interior Karnataka, Telangana, and Coastal Andhra Pradesh are among the regions expected to receive widespread showers. Isolated very heavy rainfall is possible in Coastal Andhra Pradesh and Yanam on November 2 and 3, while Telangana could experience thunderstorms and strong winds reaching speeds of up to 60 kmph.

For Delhi-NCR, however, the immediate forecast points towards a gradual return to more settled weather. The overnight rain has brought an early reminder of winter, but whether the chill stays will depend on how temperatures respond once the clouds begin to clear.

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