San Salvador has a tropical wet and dry climate under the Köppen climate classification, and enjoys very warm to hot weather all year round, with daily mean temperatures of . Its weather cools from the months of November through February due to seasonal winds of the dry season. During these months one can expect a daily mean of . The hottest months of the year are April and May, during the transition from the dry season (November to April), to the rainy season (May to October). In April and May average maximum temperatures reach . The highest reading ever recorded was , the lowest was . The highest dew point was  and the lowest . Thunderstorms occur almost daily during the rainy season, mostly in the afternoon and through the night—by morning the sky clears and the days are usually sunny until the afternoon storms.