In June, the weather in Ratchaburi is typically hot. Average daily high temperature in June is about 34 degrees above zero. On average, Ratchaburi has 22 rainy, 4 cloudy, 3 partly cloudy, and 1 sunny day in June. The rains are usually heavy. June as well as April, May, July, and August is considered the most uncomfortable time to visit Ratchaburi.