January in Kiunga is the rainiest, the windiest, the cloudiest, and the hottest month of the year. In January, the weather in Kiunga is typically hot. Average daily high temperature in January is about 29 degrees above zero. On average, Kiunga has 31 rainy days in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Kiunga.