People have been urged not to go out to sea on Thursday and Friday because of strong winds.
The National Centre of Meteorology and Seismology (NCMS) forecasts rough seas and a surge of sea water on the eastern coast. The wind may exceed 45kph, kicking up sand and dust. The unsettled weather could drop temperatures over the country.
The NCMS also forecasts chances of rain in the north eastern regions of the country.
It has asked motorists to take precaution on roads due to an expected bad horizontal visibility, specifically over the inland areas.