The weather of Koh Tao Island follows a typical tropical climate pattern, characterized by two main seasons: the dry season and the rainy season. December to April is generally considered the best time to visit Koh Tao, with pleasant temperatures, clear skies, and minimal rainfall whereas May to October is considered as rainy season and there are higher chance of encountering rain showers and occasional thunderstorms. Overall, Koh Tao enjoys warm temperatures year-round, with average highs ranging from 28°C to 34°C and lows around 24°C to 28°C.