February in Kailua-Kona is the coldest month of the year. In February, the weather in Kailua-Kona is typically warm. Average daily high temperature in February is about 22 degrees above zero. On average, Kailua-Kona has 19 partly cloudy, 8 sunny, 1 rainy, and 1 cloudy day in February. The rains are usually light. February as well as January, March, and December is considered the most comfortable time to visit Kailua-Kona.