---
title: "Arabian Sea Branch of the Southwest Monsoon — Definition"
description: "The Arabian Sea Branch of the Southwest Monsoon is crucial for India's agriculture, impacting the Western Ghats and northwestern regions each summer."
url: "https://modeldiplomat.com/learn/glossary/arabian-sea-branch-monsoon"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The Arabian Sea Branch is one of two limbs of the Indian southwest summer monsoon, originating over the Arabian Sea and striking the Western Ghats and northwestern India.
- How does the Arabian Sea Branch differ from the Bay of Bengal Branch?
- Why is the Deccan plateau dry despite the Arabian Sea Branch?
- What are the three streams of the Arabian Sea Branch?
- When does the Arabian Sea Branch normally reach India?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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Example

The India Meteorological Department declared the southwest monsoon's onset over Kerala on 30 May 2024, marking the Arabian Sea Branch's arrival on the Western Ghats slightly ahead of the 1 June normal.

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