Tamil Nadu to Receive Light to Moderate Rain on September 17-18: RMC Chennai Forecast

The Regional Meteorological Centre (RMC), Chennai has forecast light to moderate rainfall over isolated parts of Tamil Nadu on September 17 and 18, 2025. This weather prediction comes as part of the ongoing seasonal monsoon patterns affecting South India, bringing intermittent showers to several districts.

Districts Likely to Be Affected

According to the latest advisory from RMC Chennai, isolated rainfall is expected across multiple districts in Tamil Nadu. While not all areas will be affected, residents in low-lying and flood-prone regions are advised to remain cautious, especially during periods of moderate rain. The rainfall is likely to occur sporadically, with intermittent showers affecting daily activities and local transport in some regions.

Weather Pattern Analysis

Meteorologists note that the current monsoon dynamics are contributing to the scattered rainfall across Tamil Nadu. Moisture-laden winds from the Bay of Bengal combined with local convection patterns are expected to bring light to moderate showers, primarily during the afternoons and evenings. Such weather conditions are typical for this period and help maintain soil moisture, benefitting agriculture and water reservoirs.

Precautionary Measures

Authorities have advised residents to take precautions during rainfall, especially on roads prone to waterlogging. Farmers are recommended to monitor crop conditions, as intermittent showers can both benefit and challenge certain crops depending on soil and drainage. Local administrations are expected to monitor rainfall intensity and respond promptly to any localized disruptions caused by the showers.

Conclusion

With light to moderate rain predicted in parts of Tamil Nadu on September 17 and 18, residents and authorities are urged to stay alert and plan accordingly. The forecast underscores the continuing influence of seasonal weather patterns on daily life and agriculture in the state. Preparedness and timely response will ensure minimal disruption while allowing people to safely navigate the intermittent rainfall.

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