Tamil Nadu Forecasts Continued Rainfall and Northeast Monsoon Onset in October 2026
Tamil Nadu experienced moderate to heavy rainfall in September and early October 2026, with the India Meteorological Department (IMD) and Regional Meteorological Centre (RMC) forecasting continued and intensified rainfall. Conditions are becoming favorable for the onset of the Northeast Monsoon, with heavy rainfall anticipated in several districts from October 15 to October 18, 2026.
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What Happened
Tamil Nadu recorded moderate to heavy rainfall across various districts in September and early October 2026. The India Meteorological Department (IMD) and the Regional Meteorological Centre (RMC) issued forecasts and warnings for these periods. Extremely heavy rain was reported in Coimbatore on September 21, 2026. From October 1 to 7, 2026, the Tamil Nadu subdivision received 19.9 mm of rainfall, which was 32% below the normal of 29.4 mm.
Conditions are now becoming favorable for the onset of the Northeast Monsoon over the Southern Peninsula. A low-pressure area is expected to form over the southeast Bay of Bengal around October 13, potentially intensifying and moving towards the North Tamil Nadu-South Andhra Pradesh coasts. This system is projected to bring moderate to heavy rainfall to coastal areas of Tamil Nadu and Andhra Pradesh from October 15 to 20, with the IMD issuing a yellow alert for heavy rainfall in several districts from October 15.
Key Facts
- Tamil Nadu experienced moderate to heavy rainfall in September and early October 2026.From research
- Extremely heavy rain was recorded in Coimbatore on September 21, 2026.From research
- From October 1 to 7, 2026, Tamil Nadu recorded 19.9 mm of rainfall, 32% below normal.From research
- Conditions are favorable for the onset of the Northeast Monsoon over the Southern Peninsula.From research
- Heavy rainfall is anticipated in several districts from October 15 to October 18, 2026.From research
- A low-pressure area is expected to form over the southeast Bay of Bengal around October 13.From research
The Timeline17
Every article on this story, in the order it was filed. We do not rank the outlets. Headlines filed in other languages are machine-translated.
19 Sept
21 Sept
23 Sept
25 Sept
28 Sept
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29 Sept
30 Sept
3 Oct
6 Oct
7 Oct
8 Oct
10 Oct
11 Oct
12 Oct
13 Oct
CoverageWhat we read
Language reach
Dailies carrying this story, against the dailies we read in each language.
- Tamilதமிழ்2 of 2
Regional reach
Where this story reached, and where it did not. National mastheads and wire agencies circulate everywhere and are counted separately, not drawn on the map.
- None carried this
- No source registered
- 1 outlet
- 2 or more
- Where the story is
- NorthNot carried0 of 4
- WestNot carried0 of 5
- Central IndiaNot carried0 of 1
- EastNot carried0 of 5
- North-eastNot carried0 of 2
- SouthCarried2 of 10
2 of the 26 states we read have local coverage. Concentrated in the South.
About This Analysis
One summary, built from every source. No single newsroom's voice.
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Paksh: the sides a story is told from. 2 newsrooms filed on this one, and every filing is listed above.