# Heavy Rain and High Waves Threaten Onam Festivities Across Kerala as Weather Alerts Issued

> A low pressure system over the North-West Bay of Bengal is expected to bring heavy rains across Kerala during Onam celebrations, prompting yellow alerts in eight districts and coastal warnings for high swell waves.

**Type:** article · **Category:** Festivals · **Published:** 2026-08-24 · **Source:** TrendKia
**Canonical:** https://trendkia.com/en/festivals/onam-ki-khushiyon-ke-bicha-kerala-men-bhari-barisha-ka-khatara-tatiya-kshetron-ke-lie-jari-hui-chetavani-21069 · **Language:** English
**Tags:** Kerala Weather, Onam 2024, Thiruvanam, IMD Alert, Kallakkadal, Heavy Rain, Kerala Rainfall

As Kerala prepares to celebrate its biggest festival with full grandiosity, severe weather conditions threaten to disrupt the festive spirit across the state. A low-pressure system developing over the North-West Bay of Bengal is set to trigger heavy rainfall precisely during the key dates of Onam. The festivities commence with First Onam on August 25, followed by the main festival day, Thiruvanam, on August 26, after which the third and fourth Onam celebrations are slated to take place.

## IMD Issues Yellow Alerts Across Multiple Districts
The India Meteorological Department (IMD) has sounded alerts regarding torrential downpours across several regions in the state over the coming days. On Monday, a Yellow Alert was declared in eight specific districts: Kasaragod, Kannur, Thrissur, Idukki, Pathanamthitta, Alappuzha, Kottayam, and Ernakulam. The weather department expects atmospheric instability to persist throughout Kerala, with three districts remaining under Yellow Alert on Tuesday as well.

This sudden turn in weather comes at an inconvenient moment, as markets, decorated streets, and shopping venues are packed with families gathering supplies for the traditional Onam feast and preparing for public cultural gatherings. In Kerala, Onam is celebrated as much in public spaces as it is at home, leading officials to closely monitor the evolving weather patterns during this crucial phase of the festival.

## High Waves and Kallakkadal Alert Along Coastal Belts
In addition to interior rainfall, the coastal stretches of Kerala face severe marine hazards. Authorities have imposed a complete ban on all fishing activities along the coasts of Kerala and Lakshadweep due to powerful sea winds and heavy precipitation. The Indian National Centre for Ocean Information Services (INCOIS) has cautioned against potential coastal flooding caused by the 'Kallakkadal' phenomenon. Marine forecasts indicate swelling waves reaching heights between 0.9 and 1.3 meters along the Kerala shoreline, expected to persist until 11:30 PM on Monday night.

## Safety Advisories Issued for Residents and Tourists
Given the precarious conditions along the coastline, administrative agencies have issued strict advisories targeting local residents, fishermen, and visiting tourists. Members of the public are urged to stay away from beach areas and refrain from any water-based recreational activities until all official warnings are formally withdrawn. Fishermen have been instructed to keep all motorized and non-motorized fishing craft anchored securely in harbor docks to prevent damage or loss during rough sea conditions.

## What this means for you
**Across India:** Travelers planning trips to southern regions, especially Kerala, during the festive holidays should adjust their travel plans in accordance with weather and coastal advisories.

**In Kerala:** Local residents, vendors, and tourists are advised to remain cautious of waterlogging and avoid visiting beach areas during the primary Onam festivities on August 25 and 26.

## Questions & Answers

### 1. What is causing the heavy rainfall in Kerala during Onam?
A low pressure area developing over the North-West Bay of Bengal is triggering heavy rainfall across several parts of Kerala.

### 2. On which dates are First Onam and Thiruvanam being celebrated?
First Onam falls on August 25, while the primary festival day of Thiruvanam takes place on August 26.

### 3. Which districts in Kerala have been placed under a Yellow Alert on Monday?
A Yellow Alert was issued for eight districts on Monday, including Kasaragod, Kannur, Thrissur, Idukki, Pathanamthitta, Alappuzha, Kottayam, and Ernakulam.

### 4. What warnings have been issued for the coastal areas?
Authorities warned of swell waves ranging from 0.9 to 1.3 meters due to the Kallakkadal phenomenon, causing potential coastal flooding and prompting a complete ban on fishing activities.

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