January weather forecast in Hagatna

In January, the weather in Hagatna is typically warm. Average daily high temperature in January is about 27 degrees above zero. On average, Hagatna has 19 rainy, 7 sunny, and 5 partly cloudy days in January. The rains are usually heavy. January as well as May, June, July, and August is considered the most uncomfortable time to visit Hagatna.