January weather forecast in Hagatna

January in Hagatna is the windiest month of the year. In January, the weather in Hagatna is typically hot. Average daily high temperature in January is about 28 degrees above zero. On average, Hagatna has 19 rainy, 7 sunny, 3 partly cloudy, and 2 cloudy days in January. The rains are usually heavy. January as well as June, July, August, and September is considered the most uncomfortable time to visit Hagatna.