Tamil Nadu weather: Heavy rains predicted in Chennai and these districts for next six days; Check full list and forecast

Tamil Nadu weather: The Regional Meteorological Centre (RMC) of the India Meteorological Department (IMD) in Chennai has predicted widespread rainfall across Tamil Nadu over the coming days, with 16 districts expected to receive heavy downpours on Tuesday.

The weather office has also warned that this period of intense rain could persist until October 19, impacting both the Western Ghats and several interior regions.

According to the official bulletin, heavy rainfall is likely on Tuesday and Wednesday in the hilly areas of Coimbatore, Nilgiris, Theni, and Tenkasi. In addition, the hill belts of Tiruppur district, along with Erode, Dharmapuri, Salem, Namakkal, Karur, Dindigul, Madurai, Virudhunagar, Tiruchirappalli, Kallakurichi, and Tiruvannamalai, are also expected to witness significant spells of rain.


Chennai Weather:

Heavy Rainfall & Thunderstorm Warning (15–20 October 2025)

Day	Date	Max Temp (°C)	Min Temp (°C)	Sky Condition	Rain/Thunderstorm

1

15.10.2025

32

26–27

Partly cloudy

Moderate rain with Thunderstorm & lightning

2

16.10.2025

31–32

26–27

Partly cloudy

Moderate rain with Thunderstorm & lightning

3

17.10.2025

31–32

26–27

Partly cloudy

Moderate rain with Thunderstorm & lightning

4

18.10.2025

32

26–27

Partly cloudy

Light/Moderate rain with Thunderstorm & lightning

5

19.10.2025

32–33

27

Partly cloudy

Light/Moderate rain

6

20.10.2025

32–33

27

Partly cloudy

Light/Moderate rain

Tamil Nadu: Heavy Rainfall & Thunderstorm Warning (15–20 October 2025)

Day & Date	Districts Likely to Receive Heavy Rainfall	Thunderstorm & Lightning Alert
Day 1 – Oct 15, 2025	Ghat areas of Coimbatore, Nilgiris, Dindigul, Theni, Virudhunagar, Madurai, Sivaganga, Ramanathapuram, Thoothukudi, Tenkasi, Tirunelveli, and Kanyakumari	Thunderstorm & lightning likely at one or two places over Tamil Nadu, Puducherry, and Karaikal
Day 2 – Oct 16, 2025	Ghat areas of Coimbatore, Nilgiris, Dindigul, Theni, Tenkasi, Madurai, Sivaganga, Virudhunagar, Ramanathapuram, Thoothukudi, Tirunelveli, Kanyakumari, Pudukkottai, Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, Cuddalore, and Karaikal	Same as above
Day 3 – Oct 17, 2025	Kanyakumari, Tirunelveli, Thoothukudi, Tenkasi, Virudhunagar, Madurai, Sivaganga, Ramanathapuram, Pudukkottai, Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, and Karaikal	Same as above
Day 4 – Oct 18, 2025	Nilgiris, Coimbatore, Tiruppur, Erode, Dindigul, Theni, Virudhunagar, Madurai, Sivaganga, Ramanathapuram, Thoothukudi, Tenkasi, Tirunelveli, and Kanyakumari	Same as above (till Day 4)
Day 5 – Oct 19, 2025	Nilgiris, Coimbatore, Tiruppur, Theni, Tenkasi, Tirunelveli, and Kanyakumari	—
Day 6 – Oct 20, 2025	Nilgiris, Coimbatore, Tiruppur, Theni, and Dindigul	—