August in Jamaica is the sunniest month of the year. In August, the weather in Jamaica is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Jamaica has 16 sunny, 11 partly cloudy, and 4 rainy days in August. The rains are usually light. August as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Jamaica.