Kerala Witnesses Increasing Pre-Monsoon Rainfall Trends
Kerala Witnesses Increasing Pre-Monsoon Rainfall Trends
IN · Published Sep 1, 2026
Recent studies indicate a significant increase in pre-monsoon (March to May) rainfall over Kerala, India, in recent decades.
This trend is attributed to stronger warming in the North Indian Ocean, which enhances westerly wind flow and moisture transport to the Arabian Sea, South India, and the Bay of Bengal.

Impact & Risks

The increasing pre-monsoon rainfall in Kerala has implications for agriculture, water resources, and flood management in the region. Strong pre-monsoon years bring more extreme rainfall events, which can lead to localised flooding and disrupt daily life. Additionally, the formation of low-pressure systems during these periods can influence weather patterns across southeastern and northwestern India. Conversely, weaker pre-monsoon years may result in reduced rainfall, potentially affecting water availability and agricultural productivity.

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