In October, the weather in Prachuap Khiri Khan is typically hot. Average daily high temperature in October is about 30 degrees above zero. On average, Prachuap Khiri Khan has 27 rainy, 3 partly cloudy, and 1 sunny day in October. The rains are usually heavy. October as well as April, May, June, and July is considered the most uncomfortable time to visit Prachuap Khiri Khan.