Hot Season (March - June)
The weather in Thailand classified as the hot season lasts from March to June when higher relative temperatures and occasional rain are the norm. The temperatures in the hot season begin climbing in February and by April the unrelenting heat makes many residents eager for the upcoming rains, which begin sporadically falling around mid-April. This is traditionally the least popular season for travelers to visit, although the weather in Thailand is still quite nice along Thailand’s coasts.