July in Kapa'a is the rainiest month of the year. In July, the weather in Kapa'a is typically warm. Average daily high temperature in July is about 25 degrees above zero. On average, Kapa'a has 18 rainy, 8 sunny, 4 partly cloudy, and 1 cloudy day in July. The rains are usually light. July as well as March, April, June, and August is considered the most uncomfortable time to visit Kapa'a.