Rainfall across much of Thailand is at its peak in August, with Chiang Mai and the north typically receiving their heaviest rainfall of the year. In the more rural northern regions, such as Nan and Chiang Kham, the rain can make travelling around fairly difficult. Temperatures continue to drop slightly although humidity levels will remain high (avg temp: 26-30 °C).
Rain can be expected almost every day on the islands of Koh Chang and Koh Kood, and the west coast beaches of Phuket, Khao Lak and Krabi will also be experiencing their wettest month of the year. As with previous months, Hua Hin & Cha Am, and the east coast beaches of Koh Samui, Khanom and Koh Phan Ngan are enjoying drier conditions with plenty of sunshine, before the rains arrive in September.