Sri Lanka is expected to experience showers or thundershowers across most parts of the island on Monday, 19 October 2026, warns of heavy rainfall exceeding 75 mm in several provinces and districts, along with strong winds, lightning and rough sea conditions during thunderstorms.
Showers or thundershowers are expected in most parts of the country after 1.00 p.m. Fairly heavy rainfall above 75 mm is likely at some locations in the Western, Sabaragamuwa, Central and Uva provinces. The Kurunegala, Polonnaruwa, Trincomalee and Mullaitivu districts may also experience significant rainfall.
Morning showers are possible in coastal areas of the Western and Northern provinces, as well as in Galle District. Misty conditions may develop in some locations across the Western, Sabaragamuwa, Central and Uva provinces during the early morning hours.
The public is advised to take adequate precautions against temporary localized strong winds and lightning during thundershowers. People should remain alert to changing weather conditions, particularly in areas expecting heavy rainfall.
SEA AREA FORECAST
In the sea areas surrounding Sri Lanka, showers or thundershowers are expected at several locations during the next 24 hours. Southwesterly winds will prevail at speeds of 25 to 35 kmph. Wind speeds may occasionally increase to 45–50 kmph in sea areas extending from Chilaw to Kankasanthurai via Puttalam. These areas may become fairly rough at times, while other sea areas around the island are expected to remain slight.
Wave heights may increase to approximately 1.5–2.0 metres in sea areas extending from Galle to Hambantota via Matara. Temporarily strong gusty winds of 60–70 kmph and very rough seas are possible during thundershowers.
Fishermen, naval personnel and others engaged in maritime activities are urged to exercise caution during thunderstorms. The public is encouraged to follow official weather updates and take necessary safety measures as unsettled weather continues across the island.
