In March, the weather in Kailua-Kona is typically warm. Average daily high temperature in March is about 23 degrees above zero. On average, Kailua-Kona has 20 partly cloudy, 8 sunny, 2 rainy, and 1 cloudy day in March. The rains are usually light. March as well as January, February, and December is considered the most comfortable time to visit Kailua-Kona.