Although Myanmar has two distinct seasons – dry and wet – you can visit the country throughout the year. That being said, at the peak of the wet season some regions become inaccessible and some, such as Ngapali Beach, close altogether in preparation for the high winds and heavy rainfall that batter the coast annually.
Like much of South-East Asia, Myanmar's dry season runs from October through to May and the wet season from May/June through to early October, when the south-west monsoon starts to blow. Within each season there are variations in temperature, with the dry months leading up to the wet season (March and April) and the early wet season (May and June) usually being the hottest of the year when temperatures can reach astronomical highs. The colder months follow the end of the rains, from October to December/January, when it is cool in the foothills and highland areas, especially at night. The driest regions of the country, avoiding much of the annual rain, are the plains surrounding Bagan and Mandalay which remain relatively dry aside from the odd heavy downpour, all the way through to August.