Traveling to Thailand in August may suit someone who is not bothered with a slight bad weather during their trip. Thailand receives rain in July-August as it comes after arid months of May and June. The temperature remains moderate and you can explore a lot of indoor as well as outdoor options during this time. Another plus point of traveling in August is that there are very few tourists during this time and you will have a non-crowded experience which, in my opinion, is a nice way of exploring any country. Also, the rates of accommodation and travel will be less. Happy traveling!