Tamil Nadu Weather: RMC Predicts Rain for Western Ghats, Chennai

From August 21 through August 25, light rainfall is expected at isolated locations within the Western Ghats region and northern coastal Tamil Nadu. The majority of interior districts across the state are projected to maintain dry weather, though isolated, short-duration showers remain possible due to fluctuating moisture levels driven by the coastal low-pressure system.

The RMC noted that while the current atmospheric circulation continues to influence cloud formation over hill regions and the northern coastal belt, widespread or heavy deluge events are not anticipated under present conditions.

For Chennai and its immediate suburbs, conditions are expected to remain partly cloudy. However, localized evening and nighttime spells of moderate rainfall, accompanied by isolated thunderstorms and lightning, are forecast across select sectors. Pre-monsoonal precipitation is expected to vary significantly across different urban neighborhoods.

Observational data recorded across Tamil Nadu during the 24-hour period ending at 8:30 a.m. on Wednesday underscores the scattered nature of current rain distribution. Devala in Nilgiris district and Yercaud in Salem district recorded the state's highest rainfall totals at 6 cm each, followed by Mangalur in Cuddalore district with 5 cm. Higher accumulation totals remain concentrated within hill stations and northern interior pockets.

The RMC stated it will maintain active surveillance over atmospheric developments along the Bay of Bengal coast and update regional advisories if wind trajectories or pressure patterns shift.