Southwest monsoon withdraws from entire country: IMD
The IMD said the season ended 12.6% below normal as El Nino conditions weakened rainfall and a wet spell began over southern peninsular India.
- On October 15, 2026, the India Meteorological Department announced the southwest monsoon has withdrawn from the entire country, while the northeast monsoon commenced simultaneously over southern peninsular India.
- Recording 759.4 mm of rain, the southwest monsoon ended with a 12.6 per cent rainfall deficit, primarily attributed to prevailing El Nino conditions intensifying in the Pacific Ocean.
- With the onset of the northeast monsoon, "a wet spell with isolated heavy falls is likely over many parts of south peninsular India till October 21," the IMD said.
- Known as the winter monsoon, the northeast monsoon lasts from October to December and is significant for rabi crop growth in affected southern regions.
- Global weather agencies forecast this El Nino event will likely peak in December 2026 and persist through February 2027, influencing monsoon patterns across the Pacific.
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IMD announces onset of winter monsoon in south Peninsular India, summer monsoon withdrawal completes on normal date
The southwest monsoon in India withdrew on schedule. Simultaneously, the northeast monsoon commenced, bringing rainfall to parts of south Peninsular India. Regions including Tamil Nadu, Puducherry, and coastal Andhra Pradesh experienced the initial winter rainfall. Predictions indicate a normal winter monsoon may provide relief after a significant summer rainfall deficit.
El Nino may intensify as southwest monsoon ends with 12.6% deficit
The southwest monsoon has withdrawn from India, while the northeast monsoon has commenced in southern regions, bringing a wet spell. This year's southwest monsoon saw a rainfall deficit, largely attributed to the strengthening El Nino conditions, which are expected to persist until February 2027 and could become the strongest since 1950.
Meteorological Department's warning: El Nino may reach its peak in December, these states will receive rain upon the departure of the monsoon southwest-monsoon-withdraws-india-northeast-monsoon-rainfall-el-nino-imd
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