In January, the weather in Nauru International Airport is typically hot. Average daily high temperature in January is about 28 degrees above zero. On average, Nauru International Airport has 18 rainy, 7 sunny, 4 partly cloudy, and 2 cloudy days in January. The rains are usually heavy. January as well as March, April, May, and June is considered the most uncomfortable time to visit Nauru International Airport.