Monsoon Arrives in Kerala: Earliest Onset Since 2009, IMD Confirms
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Southwest Monsoon Makes Early Entry into Kerala
The India Meteorological Department (IMD) has officially declared the arrival of the southwest monsoon over Kerala on May 24, 2025. This marks the earliest onset since 2009, arriving eight days ahead of the usual June 1 date. Criteria including widespread rainfall, deep westerly winds, and low Outgoing Longwave Radiation levels were satisfied.
Impact on Agriculture and Economy
Monsoon rains are vital to India’s agriculture, with nearly 50% of farmland depending on timely rainfall. The early onset is expected to benefit the sowing of key kharif crops like rice, maize, and cotton. Early sowing could increase yield potential, especially in southern and central India.
Weather Alerts and Precautions
Due to heavy rains, the IMD has issued:
- Orange alert in Kerala — districts including Thrissur, Wayanad, and Kozhikode are on alert due to potential flooding and disruption.
- Red alert in Karnataka — monsoon arrival coinciding with Kerala due to a depression in the Arabian Sea.
Citizens are advised to stay informed via IMD bulletins.
Monsoon Progression and Forecast
The IMD projects that the monsoon will advance across south, northeast, and central India between May 29 and June 4. This season is expected to bring above-normal rainfall — about 105% of the 87 cm long-period average.
Historical Context
The earliest known onset date was May 11, 1918. Onset dates in recent years include:
- 2024: May 30
- 2023: June 8
- 2022: May 29
- 2021: June 3
- 2020: June 1
- 2019: June 8
- 2018: May 29
