For a good number of reasons, Thailand is one of the best countries in the world to live at. The weather isn’t one of the reasons. Overall, it’s just too hot. Here now a more detailed look at temperatures.
The hottest and least comfortable provinces of Thailand are in the Center and the North. Isan, the East Coast, and Southern Thailand are a bit better. Isan benefits from some elevation, and the East Coast and Southern Thailand benefit from their adjacency to oceans.
The most interesting data is the average daily temperature in the hottest month. In Thailand, the lower the better. The least high average temperature in the hottest month, April, 33.2 Celsius, 91.8 Fahrenheit, is found in the easternmost coastal province of Trat.
North Thailand has the shittest weather of the country. The overall hottest province is Mae Hong Son with temperature, April, 38.7 Celsius, 101.7 Fahrenheit. Almost as bad is Tak with temperature, April, 38.5 Celsius, 101.3 Fahrenheit.