Kauai Weather

Kauai Weather Averages

Poipu Kauai has one of the best climates in Hawaii. It has more than 300 sunny days per year. The temperatures are almost always between the mid-seventies to the low eighties. Occasionally when the trade winds stop the temperature can rise to the high eighties and once or twice in winter weather fronts from the North can come and lower the temperature to high sixties at night.

There are basically two seasons: the summer months from May to October and the winter months from November to April. Summer average daytime temperature is about 84°F or 29°C and winter average daytime temperature is about 78°F or 26°C. At night it is usually about 10°F lower. Below are the monthly averages for Lihue Airport. This will give you an idea how the weather in Kauai will be like while you are in Kauai. Poipu weather is drier and sunnier than the north side of the island. When the trade winds are on, occasional showers come and go and you can see rainbows almost every day.