April in Chalong is the hottest month of the year. In April, the weather in Chalong is typically hot. Average daily high temperature in April is about 29 degrees above zero. On average, Chalong has 21 rainy, 6 partly cloudy, and 3 sunny 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 Chalong.