June in Honolulu is the windiest month of the year. In June, the weather in Honolulu is typically warm. Average daily high temperature in June is about 26 degrees above zero. On average, Honolulu has 21 sunny, 8 partly cloudy, and 1 rainy day in June. The rains are usually light. June as well as January, May, July, and August is considered the most comfortable time to visit Honolulu.