The south-west monsoon arrived in Kerala on Sunday, three days ahead of its expected arrival date of June 1, according to the forecast office.
The agri-based economy of India relies heavily on the south-west monsoon.
The south-west monsoon arrived in Kerala on Sunday, May 29, rather than June 1, as expected, according to India meteorological department director general Mrutyunjay Mohapatra.
The IMD had previously predicted onset over Kerala on May 27 thanks to remnants of Cyclone Asani, which hit the Bay of Bengal a fortnight ago.
The forecast has a four-day model error.
The leftover weather systems that lingered over the southern peninsula, on the other hand, faded away.