Heavy rain alert for Tamil Nadu districts; temperatures to dip over 4 days
Synopsis
The RMC has put several Tamil Nadu districts on heavy rain alert for 19–20 June, covering a wide arc from the Nilgiris to Perambalur. With temperatures also set to dip marginally over four days and Chennai bracing for evening showers, the state is entering a weather window that offers relief — but also flooding risk in low-lying and hilly areas.
Key Takeaways
The Regional Meteorological Centre (RMC) has forecast heavy rain in Tamil Nadu on Thursday and Friday, 19–20 June .
Districts under alert include Nilgiris , Dindigul , Theni , Madurai , Sivaganga , Tiruchy , and Perambalur .
Widespread moderate to heavy showers are also expected in Erode , Namakkal , Karur , Coimbatore , Pudukkottai , and Ariyalur on Friday.
Maximum temperatures across Tamil Nadu , Puducherry , and Karaikal are forecast to dip marginally over the next four days .
Chennai can expect partly cloudy skies and light evening showers, with the maximum temperature around 39°C .
Residents in low-lying and landslide-prone areas have been advised to avoid unnecessary travel and follow official advisories.
The Regional Meteorological Centre (RMC) has forecast heavy rainfall across several districts of Tamil Nadu over the next two days, with western and central parts of the state expected to receive significant showers on Thursday and Friday, 19–20 June. Authorities have urged residents in vulnerable areas to remain on alert.
Districts Under Heavy Rain Alert
According to the weather department, heavy rainfall is expected in Nilgiris, Dindigul, Theni, Madurai, Sivaganga, Tiruchy, and Perambalur on Thursday and Friday. The RMC has also predicted widespread rainfall activity across a broader set of districts on Friday, with moderate to heavy showers likely in Erode, Namakkal, Karur, Coimbatore, Pudukkottai, and Ariyalur, in addition to those already under alert.
Meteorologists said prevailing atmospheric conditions are favourable for rain across interior and hilly regions, with the expected showers set to provide relief from the hot and humid conditions that have persisted in recent weeks.
Temperature Decline Expected Across TN, Puducherry
The weather department has forecast a marginal decline in maximum temperatures across Tamil Nadu, Puducherry, and Karaikal over the next four days. While no dramatic drop is anticipated, daytime temperatures are expected to remain slightly below recent levels — offering modest but welcome respite ahead of the weekend.
Chennai Outlook
For Chennai, the RMC has predicted partly cloudy skies over the next 24 hours, with light rain likely in isolated parts of the city, particularly during evening and night hours. Despite the possibility of showers, daytime temperatures are expected to remain high, hovering around 39 degrees Celsius.
Precautionary Measures and Advisories
Local administrations in districts under heavy rain alerts have been directed to take precautionary steps to ensure public safety and minimise weather-related disruptions. Officials have urged residents to follow weather advisories and avoid unnecessary travel during periods of intense rainfall, especially in areas prone to flooding and landslides. Authorities have specifically flagged low-lying areas as vulnerable to waterlogging.
The RMC said it is closely monitoring evolving weather conditions and will issue further updates as required. This comes amid a broader pattern of above-normal pre-monsoon activity across peninsular India this June.
Point of View
And a marginal temperature dip does little to reduce that hazard. The broader question for Tamil Nadu's disaster management machinery is whether district-level preparedness has kept pace with increasingly erratic pre-monsoon patterns. Advisories to 'remain alert' are necessary but not sufficient when infrastructure in low-lying urban pockets remains flood-prone year after year.
NationPress
3 Aug 2026
Frequently Asked Questions
Which Tamil Nadu districts are under heavy rain alert on 19–20 June?
The RMC has forecast heavy rainfall in Nilgiris, Dindigul, Theni, Madurai, Sivaganga, Tiruchy, and Perambalur on Thursday and Friday, 19–20 June. Moderate to heavy showers are additionally expected in Erode, Namakkal, Karur, Coimbatore, Pudukkottai, and Ariyalur on Friday.
Will temperatures drop in Tamil Nadu over the coming days?
Yes, the weather department has forecast a marginal decline in maximum temperatures across Tamil Nadu, Puducherry, and Karaikal over the next four days. The drop is expected to be modest rather than dramatic, keeping daytime temperatures slightly below recent highs.
What is the weather forecast for Chennai on 19 June?
Chennai is expected to have partly cloudy skies over the next 24 hours, with light rain likely in isolated areas during the evening and night. Despite the showers, maximum temperatures are forecast to remain around 39 degrees Celsius.
What precautions have authorities advised for residents?
Local administrations have been directed to implement safety measures in districts under heavy rain alerts. Residents have been urged to avoid unnecessary travel during intense rainfall, particularly in areas prone to flooding and landslides, and to follow all official weather advisories.
Why is the RMC forecasting heavy rain across Tamil Nadu now?
Meteorologists attribute the activity to favourable atmospheric conditions for rainfall, especially in interior and hilly regions. The showers are part of a broader pre-monsoon weather pattern across peninsular India in June, and are expected to provide relief from recent hot and humid conditions.
