The climate of the islands is generally described as tropical and warm but the temperature is pleasant by sea breeze. The islands are exposed to both the monsoons and to north-easterly gale from November to December and south-westerly gale from May to October. The weather is calm only from January to April and to some extend in October. The average annual rainfall is 318cms. Rough weather prevails at the beginning of south-west monsoon and at the change of monsoon. The average temperature ranges between 22.5o and 29.9o.