India Meteorological Department Predicts Southwest Monsoon Arrival Over Kerala on May 26
Why it matters
The southwest monsoon provides over 70% of India's annual rainfall. To declare the 'onset,' the IMD monitors strict criteria, including regional rainfall consistency, outgoing longwave radiation, and low-level wind patterns. While an early start on May 26 affects early Kharif sowing schedules for crops like paddy and pulses, it does not strictly dictate the total seasonal volume or the speed of the monsoon’s push toward North India.
Meteorologists track the progression from the Andaman Sea to the Kerala coast using satellite imagery and ocean buoys. The government uses these forecasts to calibrate irrigation strategies and seed procurement nationwide.
- Normal onset date: June 1
- 2026 forecasted date: May 26
- Full country coverage: Typically complete by July 15
Glossary
Onset: The technical definition provided by the IMD for the arrival of monsoon winds and associated rainfall over Kerala.
Kharif: Crops sown at the beginning of the rainy season and harvested at the end of the monsoon season.
NaukriSync Exam Angle
Geography / Agriculture. Memorise the IMD’s 2026 predicted arrival of May 26 against the long-term average of June 1. Exam questions may focus on the meteorological parameters required to declare an official monsoon onset or the general timeline of the monsoon's progression across the country.