Diwali 2026: Rain Likely Across South India, Chennai, Bengaluru and Kerala at Risk

Key Takeaways:

• Most parts of India are expected to remain dry during the Diwali weekend, except for the southern peninsula.
• Remnants of storm Murasu and active northeasterly monsoon winds are supporting rainfall across southern states.
• Chennai, Bengaluru, Puducherry, Madurai, Kochi and several other cities may experience rain and thundershowers during the festivities.
• Rainfall activity is likely to continue beyond the Diwali weekend across parts of South India.

The weather conditions are likely to remain dry over most parts of the country, outside the South Peninsula, over the weekend. Scattered rains have lashed Coastal Andhra Pradesh, Tamil Nadu, Kerala and South Interior Karnataka in the past 24 hours. A similar trend is likely today and also during the weekend on Saturday and Sunday.

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The remnant of storm ‘Murasu’ is still seen as a weak cyclonic circulation over Telangana and Coastal Andhra Pradesh. Also, there is a trough extending in the lower levels from the Southeast Arabian Sea to South Interior Karnataka, across Kerala. The northeasterly monsoon stream, as such, is active over the extreme southern parts and on either side of the coastline. A feeble cyclonic circulation is marked over the Comorin and Maldives region in the lower levels.

Under the combined influence of these systems, the southern parts of the country are likely to witness rainy conditions during the weekend. The locations vulnerable to rain and thundershowers will include Chennai, Puducherry, Cuddalore, Karaikal, Nagapattinam, Madurai, Trichy, Thanjavur, Coimbatore, Bengaluru, Mysore, Mandya, Hassan, Chitradurga, Kochi, Thiruvananthapuram, Kozhikode, Thrissur, Kannur and adjoining stations of Coastal Karnataka. The wet spell may hamper Diwali festivities across these parts. Rains will continue even beyond the weekend in a similar fashion.