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Meteorologists warn El Niño may bring heavy rain and floods in coming months

Sri Lanka's meteorological authorities have cautioned that El Niño conditions developing across the Indian Ocean could trigger intense rainfall and widespread flooding during the October-November period. Residents and authorities are being advised to prepare for potential weather-related disruptions.

LSN Sri Lanka · 25 August 2026

Meteorologists warn El Niño may bring heavy rain and floods in coming months

The Meteorology Department has issued a weather alert as atmospheric conditions associated with El Niño phenomena show signs of intensifying in the region. The development could lead to above-normal precipitation across parts of the island during the final two months of 2024, increasing risks of flooding in vulnerable areas.

El Niño conditions, characterized by warming ocean temperatures in the Pacific and Indian Ocean regions, significantly influence rainfall patterns across South and Southeast Asia. When such conditions align with Sri Lanka's monsoon seasons, they can amplify precipitation levels and create hazardous weather situations.

The department's advisory comes as the country enters a critical transition period between weather systems. The October-November window coincides with the northeast monsoon season's onset, a period when the island typically experiences increased rainfall activity in parts of the north and east.

Authorities have recommended that communities in flood-prone districts strengthen preparedness measures and review disaster management protocols. Farmers and water resource managers are also being advised to monitor updated forecasts and adjust their operations accordingly to mitigate potential losses from excessive rainfall or inundation.