Weather is probably a major factor when you plan your trip to Tailandia, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually October and September, with an average temperature of 28°C, while the coldest months are January and February, with an average of 26°C. The rainiest months in Tailandia are March, April, February and May, with each month seeing an average of 502 mm of rainfall.