Monsoon onset over Kerala is likely to be slightly delayed this year. The India Meteorological Department has said, the southwest monsoon is likely to set over Kerala on 7th June. The normal monsoon onset date is June 1 when it reaches the state.<br/><br/>The southwest monsoon advances over the Andaman Sea normally around 20th May with a standard deviation of about one week. <br/><br/>Conditions are becoming favorable for the onset of southwest monsoon over Nicobar Islands , south Andaman Sea and parts of south Bay of Bengal around 17th May and advancement over the entire Andaman sea close to its normal date.<br/><br/>The Met department have made a forecast of above normal monsoon this year.