Colombo, Sri Lanka – September 6, 2026 – The Department of Meteorology, under the purview of Sri Lanka’s Disaster Management Centre (DMC), has released its latest general weather forecast, specifically catering to Tamil-speaking communities across the island. Issued at 2:00 PM on September 6, 2026, this detailed outlook provides crucial information for the next 24 hours, primarily focusing on September 7, 2026.
Inland Weather Outlook: Heavy Showers and Thunderstorms Anticipated
According to the forecast division of the National Meteorological Centre, several areas in the Uva, Central, and Eastern provinces, along with the Polonnaruwa and Mullaitivu districts, are likely to experience rain or thundershowers after 2:00 PM. Residents in the Uva and Eastern provinces should prepare for potentially fairly heavy rainfall exceeding 50 mm in some locations.
Light rain is also expected in parts of the Western, Sabaragamuwa, and North Western provinces, as well as the Galle and Matara districts.
The DMC urges the public to take necessary precautionary measures to mitigate potential damage from strong temporary winds and lightning strikes that may accompany thundershowers. Safety during such weather events is paramount.
A notable astronomical event also features in the forecast: due to the sun’s apparent southward movement, it will be directly overhead areas of Sri Lanka from August 28th to September 7th this year. Tomorrow, September 7th, around 12:08 PM, the sun will be directly above Galle, Angulugaha, Imaduwa, Salijjawila, Thiththerana, and Sankarankala.
Understanding Rainfall Intensities
For clarity, the rainfall amounts are defined as follows:
- Light Rain: 00-12.5 mm
- Light to Moderate Rain: 12.5-25 mm
- Moderate Rain: 25-50 mm
- Fairly Heavy Rain: 50-100 mm
- Heavy Rain: 100-150 mm
- Very Heavy Rain: 150 mm or more
Maritime Weather: Rough Seas and Strong Winds Expected
The forecast for the sea areas around Sri Lanka, also issued at 2:00 PM on September 6, 2026, details conditions for the next 24 hours.
Rainfall Conditions at Sea:
Rain is expected in several sea areas extending from Chilaw through Colombo and Galle to Matara. Furthermore, many sea areas off the coast from Mullaitivu through Trincomalee and Batticaloa to Pottuvil are likely to experience rain or thundershowers in the evening or night.
Wind Patterns:
Winds in the sea areas around the island will predominantly blow from the South-Westerly direction, with speeds ranging between 30-40 kmph. However, wind speeds could occasionally increase up to 50 kmph in the sea areas off the coast from Hambantota to Pottuvil, and from Kankesanthurai through Mannar to Puttalam.
Sea State:
The sea areas off the coast from Hambantota to Pottuvil, and from Kankesanthurai through Mannar to Puttalam, are expected to be moderately rough at times. During thundershowers, these sea areas may become very rough, accompanied by strong gusty winds. Mariners and coastal communities are advised to exercise caution.
Stay Informed and Prepared
The DMC continues to monitor weather patterns closely and advises the public to stay updated with official announcements. Taking proactive measures can significantly reduce risks associated with adverse weather conditions. For further details and immediate updates, refer to the official DMC channels.
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