January in Hualian is the rainiest and the coldest month of the year. In January, the weather in Hualian is typically warm. Average daily high temperature in January is about 14 degrees above zero. On average, Hualian has 30 rainy and 1 sunny day in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Hualian.