Weather on the Hawaiian Islands

Weather on all of the Hawaiian Islands is very consistent, with only moderate changes in temperature throughout the year. There are essentially only two seasons here: summer (called Kau in Hawaiian), which runs from May to October, and winter (Ho'oilo), from November to April.

Most of the rain falls in the mountains and valleys on the windward (northeastern) side of the islands. The wettest months are from November - March, but the winter rains rarely disrupt vacationer's plans, since the very localized nature of the weather usually means that if it is raining where you are, there is likely a sunny spot a short distance away.
The trade winds provide a cooling breeze most of the time here. Several times during the year the trade winds will stop, and we will get kona winds which come out of the south or west, bringing stormy or hot sticky weather.

The weather station in North Kohala at Upolu Point reports average high temperatures of 83 degrees F., with a range of 79 (in Feb.) to 86 (in Sept.), and average low temperatures of 69 degrees, with a range of 66 (in Feb.) to 71 (in Sept.). We are a little east, and about 1000 feet mauka (uphill from) the weather station, so our weather is probably slightly cooler at night, but we are also more protected from the wind. The rainfall comes mostly at night and beautiful misty rain on some mornings.