Tamil Nadu Weather Forecast: Light Rain Likely in Chennai, Western Ghats Districts Till July 16

The Regional Meteorological Centre (RMC), Chennai, has forecast light to moderate rainfall across parts of Tamil Nadu over the coming days. The weather is being influenced by two trough systems affecting the region.

According to the RMC, a trough extending up to 0.9 km above mean sea level lies along the North Tamil Nadu coast. Another trough extends from South Konkan to the east-central Arabian Sea, between 1.5 km and 3.1 km above mean sea level, passing off the Karnataka coast.

Rainfall Forecast

July 11, 2026

One or two places in the Western Ghats districts are likely to receive moderate rainfall accompanied by thunderstorms, lightning, and gusty winds reaching 40–50 kmph.

The rest of Tamil Nadu, along with Puducherry and Karaikal, may experience light rain with thunderstorms and lightning at isolated places, while dry weather is expected to prevail in other areas.

July 12 to July 14, 2026

Moderate rainfall is likely at isolated places in the Western Ghats districts. The rest of Tamil Nadu is expected to experience dry weather.

July 15, 2026

Light to moderate rainfall is likely at isolated places over the Western Ghats districts. Elsewhere in Tamil Nadu, including Puducherry and Karaikal, dry weather is expected to continue.

July 16, 2026

Light to moderate rainfall is likely at isolated places over the Western Ghats districts, North Tamil Nadu coastal districts, Puducherry, and Karaikal. Dry weather is expected across the remaining parts of the State.

Temperature Forecast

Maximum Temperature

July 11: No significant change in maximum temperatures is expected across Tamil Nadu, Puducherry, and Karaikal.

July 12 to July 14: Maximum temperatures are expected to remain near normal, with a slight increase possible in some areas.

Temperature Departure

- July 11: Maximum temperatures are likely to remain close to normal across Tamil Nadu, Puducherry, and Karaikal.

- July 12 to July 14: Maximum temperatures may rise by 2°C to 3°C above normal at isolated places in Tamil Nadu, while the rest of the State, including Puducherry and Karaikal, is expected to record near-normal temperatures.

Chennai Weather Forecast

For July 11, 2026, the sky over Chennai and its suburbs is expected to remain partly cloudy. Light rain accompanied by thunderstorms and lightning is likely in a few parts of the city.

Maximum Temperature: 37°C–38°C
Minimum Temperature: 27°C–28°C