August in Christmas Island is the sunniest month of the year. In August, the weather in Christmas Island is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Christmas Island has 19 sunny, 11 partly cloudy, and 1 rainy day 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 Christmas Island.