The weather in Cuba in June is sunny and warm. The average temperature of June is 27.6 ºС, the water temperature is 27.3 ºС. June in Cuba falls under the rainy season, which lasts until the end of October, and it is in June that the greatest amount of precipitation falls, although the tropical rainfall ceases after 5-10 minutes, and after 2 hours it becomes dry again under the scorching sun.