April in Hua Hin is the hottest month of the year. In April, the weather in Hua Hin is typically hot. Average daily high temperature in April is about 35 degrees above zero. On average, Hua Hin has 13 rainy, 9 sunny, and 8 partly cloudy days in April. The rains are usually heavy. April as well as May, June, July, and August is considered the most uncomfortable time to visit Hua Hin.