We are in for a wet Deepavali in many parts of Tamil Nadu

Nearly 20 northern coastal and inland districts, including Chennai, would also receive light rainfall on Deepavali day. | Photo Credit: VELANKANNI RAJ B

Tamil Nadu looks likely to witness a wet Deepavali on Sunday, with weather agencies predicting rain clouds in many parts of the state till November 12.

The Regional Meteorological Center (RMC) has predicted fairly widespread rainfall in Tamil Nadu, with heavy spells expected in southern and delta regions, while northern coastal and inland areas are expected to experience moderate rainfall.

However, RMC officials said that most parts will experience intermittent rain rather than continuous rain.

According to RMC, isolated places of seven delta and southern districts including Thanjavur, Tiruvarur, Ramanathapuram and Thoothukudi may experience heavy rainfall on Sunday.

Nearly 20 northern coastal and inland districts would also receive moderate rainfall on Deepavali day. These include Chennai and its surrounding districts, Sivagangai, Theni, Tiruchi and Kanniyakumari. There is a possibility of light rain at a few places in the remaining districts.

Wet weather is expected to prevail across the state till November 12, with heavy rainfall lashing the delta and southern districts till Tuesday.

VR Durai, head of the Regional Meteorological Forecasting Centre, RMC, said a weather system over the south-east Arabian Sea is affecting the wet weather in the southern parts of the state. Additionally, a weather system near the Comorin region and the Sri Lankan coast, which is likely to intensify on Sunday, is expected to sustain heavy rainfall activity, especially at places like Thoothukudi and Ramanathapuram.

While a low pressure area is likely to develop over the southeast Bay of Bengal around November 13, it has little chance of further strengthening as a depression.

“We expect a significant increase in rainfall around November 17 and November 18, especially over the coastal and inland parts of the state. Intensification of easterly waves may trigger widespread monsoon rainfall,” he said.

Sustained wet weather may help improve the North East monsoon surplus of the state which currently stands at 7%. Absence of adequate rainfall has pushed districts like Chengalpattu, Kancheepuram, Mayiladuthurai, Thoothukudi, Tiruvarur and Thanjavur into the rain deficit category.

Published – 8 Nov 2026 05:30 IST