The Gulf of Mannar sea area and sea areas off Western, Southern and South-eastern coasts will be rough at times. (Colombo Gazette) The weather over Si Lanka today has been mainly fair and cold, the Department of Meteorology said.A cold breeze was felt in Colombo and the surrounding areas from morning. Winds will be from North-easterly or Northerly direction and speed will be 30 – 40 km/hr. The speed may increase up to 50-60 km/hr at times in the Gulf of Mannar sea area and sea areas off the Western, Southern and South-eastern coasts. The Department of Meteorology meanwhile said that there will be showers or thundershowers at several places in the sea areas off Eastern, South-eastern and Southern coasts over the next few hours.