Archive · 2 Sep 2026
Thunderstorms and Moderate Rain Forecast Across Tamil Nadu
Several parts of Tamil Nadu may get rain and thunderstorms on Wednesday.
Chennai could see rain in the evening or at night.
The rain is connected to weak air movement near the coast.
Some Western Ghats districts may receive moderate rain.
Other areas may get lighter showers.
Rain is also possible in Puducherry and Karaikal on Thursday and Friday.
Temperatures inland may become 2 to 4 degrees Celsius higher between September 2 and 5.
Fishermen have been told to stay away from some southern seas because strong winds are expected.
Moderate rain with thunderstorms is forecast in Chennai and several Tamil Nadu districts on Wednesday.
The weather is linked to a weak atmospheric circulation over Tamil Nadu’s coastal areas.
Light to moderate rain may continue in parts of Tamil Nadu, Puducherry and Karaikal through Friday.
Interior Tamil Nadu temperatures may rise by 2 to 4 degrees Celsius between September 2 and 5.
Fishermen have been advised to avoid waters off the south Tamil Nadu coast, Gulf of Mannar and adjoining Comorin Sea on Wednesday and Thursday.
- Who
- The Regional Meteorological Centre issued the forecast, and fishermen are affected by the advisory.
- What
- Moderate rain and thunderstorms are forecast in parts of Tamil Nadu, with lighter rain elsewhere.
- When
- The main forecast is for Wednesday, with additional rain expected Thursday, Friday and September 5-7.
- Where
- Tamil Nadu, Chennai, Puducherry, Karaikal, the Western Ghats and nearby coastal waters.
- Why
- A weak atmospheric circulation over coastal Tamil Nadu is triggering the rainfall; strong winds prompted the fishermen’s advisory.
- Wednesday forecast
- Moderate rain with thunderstorms is likely in Chennai and several Tamil Nadu districts.
- Thursday forecast
- Light to moderate rain with thunderstorms is expected in parts of Tamil Nadu and Puducherry.
- Friday forecast
- Moderate rain is forecast at isolated places in Western Ghats districts, with light showers elsewhere.
- Temperature outlook
- Interior Tamil Nadu temperatures may increase by 2 to 4 degrees Celsius between September 2 and 5.
- Chennai temperatures
- The maximum temperature is expected to be 35-36°C and the minimum 26-27°C.
- Fishermen advisory
- Fishermen should not venture into waters off the south Tamil Nadu coast, Gulf of Mannar and adjoining Comorin Sea on Wednesday and Thursday.
- Wind forecast
- Squally winds of 45-55 kmph, occasionally reaching 65 kmph, are expected in the advisory areas.