IMD declared the monsoon's full withdrawal on October 15 after the weakest season since 2015, with El Nino conditions expected to persist into 2027.

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• IMD announced on October 15 that the southwest monsoon had withdrawn from the entire country.
• The northeast monsoon began the same day over Tamil Nadu, Puducherry, Karaikal, coastal Andhra Pradesh, Rayalaseema, south interior Karnataka, Kerala and Mahe.
• The southwest monsoon season ended with 759.4 mm of rainfall against a normal of 868.6 mm, a deficit of 12.6%.
• Seasonal rainfall was 87% of the Long Period Average, the lowest for the season since 2015.
• East and northeast India had its driest monsoon since 1901, with 1,017.1 mm of rain and a 25.6% deficit.
• The southern peninsula recorded a rainfall deficit of 24.3%.
• A wet spell with isolated heavy falls is likely over many parts of south peninsular India until October 21.
• The northeast monsoon, also called the retreating monsoon, affects parts of India from October to December.
• It is less intense than the southwest monsoon but important for the growth of rabi crops.
• IMD forecast October rainfall below 85% of the Long Period Average as El Nino strengthens.
• El Nino conditions are expected to persist through February 2027.

Tags: SouthwestMonsoon, NortheastMonsoon, ElNino