Kauai Climate Chart

The climate of Kauai is semi-tropical, moderated by the ocean surrounding the island, and the weather is generally warm and sunny year-round. There are two seasons - summer (May to October) has pleasant temperatures with an average of about 78°F (26°C), and winter (November to April) has temperatures that rarely fall below 65°F (18°C). The sheltered southern and eastern sides of the island enjoy the best weather, with little wind and clear, sunny skies.