In December, the weather in Aitutaki is typically warm. Average daily high temperature in December is about 27 degrees above zero. On average, Aitutaki has 22 rainy, 7 sunny, 1 cloudy, and 1 partly cloudy day in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Aitutaki.