Myanmar has a tropical climate and has distinct seasons –hot, wet and cool. The country becomes very hot from March to May. The temperatures often excess over 40°C (or 104°F)in the dry zone of the central plains in Bagan and Mandalay. From May to October, the southwest monsoon brings rain so there may be obstructed roads from July to September in particular.
But, the central plains receive only a fraction of the rain seen on the coast and in the Ayeyarwady delta and the rain begin to lessen from October onwards. Between November and February when the days are dry, cool and warm, it is the best time to visit Myanmar. Also, this time around the year, the country receives most of its visitors. During this season, the beaches are open and your travel is surely rewarded with variation and ease. But planning to travel to Myanmar in hot or wet season is also absolutely fine since in wet season, Myanmar don’t receive as much rainfall and rarely affect your trip. In fact, this time around, you will see Myanmar’s lush landscapes to life. Planning your travel in these seasons can benefit you from less crowd and also attracts lots of discount.
For detail insight of the country you can also arrange trip according to the country’s festivals. Like Ananda Temple Festival in January and Mahamuni Temple Festival in February or March, Thingyan Festival in mid-April, Shwedagon Pagoda Festival in March, Phaung Daw Oo Pagoda Festival usually between September and October etc.