If you plan to Travel on the Northern and South provinces, the warm season (March to May) and rainy season (June to July) are not awful either, as temperatures are moderate at higher elevations dry time of the year the rest of the year .Northeastern and centered Thailand, on the other hand, is best bypassed from stride to May, when temperatures may ascend over 40°C.The sandy shores and isles of south Thailand are a good alternative for respite when the rest of Thailand is miserably hot.