Weather - when going to Myanmar
There is only two season in Myanmar:
  
- Monsoon (rainy season) from May to end of September.
- Dry season, from October to the end of April, which is usually the main high season for the tourists (but in April and May, the hottest months, we have very few tourists in Myanmar). Most of the people are coming bewtween November and the end of February.
- End of September - First 2 weeks of October: Everything  is totally green, very beautiful, you usually do not have many tourist and if  you travel in September, you still get the low season price. You have a bigger chance  of rain in September but usually in October, you have really less rain. It is a   good time to travel in Myanmar
  - May - June: Usually monsoon  rains have started in the southern part of the country and Yangon, but in  Bagan, Mandalay and Inle, you may have only very few rains, just enough to cool  the air. There is no tourist, prices are the low season prices, and if some  rains have already start, temperature are lower than in April, sky is blue, no  more dust. It is a very good time to come (but if the rain is late, it will be  very hot in Bagan in May)
 Link:  World bank website with all the historical data about weather in Myanmar : Here
 
Dry season:
October to end of February
It is not  too hot, even cold in the mountain area such as Pyin Oo lwin, Lashio, Hispaw,  Inle Lake or Mindat. You may even need to wear warm clothes at night. Usually, there is  no rain at all (even if in the southern part of Myanmar you may have some rain  shower). The best months to visit Myanmar are October November and December,  try to avoid December between Christmas and New Year (tourists).
October and  November are the best months, with the countryside still very green.
  
  March to end of May 
  It is hot,  very hot and you have almost zero chance to get rain. In April, you may get 40  C° and over in Bagan or Mandalay.
It is not  really the best time to make photographs, the sky is white because of the dust and temperature.
  If you do  not like hot weather, it is better to avoid this period, especially April and  May.
 
 
                    
                    
                   
Monsoon (rainy season):
Monsoon  starts in May with some violent thunderstorms and will last until the end of  September. 
It is  raining a lot in the south of Myanmar (Yangon, Bago,  Moulmein and Dawei). It means it  is raining every day, sometimes for few hours, the sky is usually clouded.  Temperature is good (28 C°)
 
In Bagan,  Mandalay, Monywa, Inle, it is maybe  the  best time to visit (especially for Bagan and Mandalay). You have beautiful blue sky, cool temperature, everything  is green and just a few tourists.
During the monsoon,  we do not recommend:
  - To go to the beach, it is pouring heavy rain.
  - In Sittwe Mrauk U, you have a risk of heavy rain but you can still visit.
  - Mergui archipelago: Usually everything is closed, no boat, no hotel, heavy rain and you may have a cyclone. 
  - Mawlamyine - Dawei : no danger, no problem, only heavy rain every day.
  
On the personal  side, the monsoon is our favourite season. Everything is green (this is really  south-east Asia), cool temperature, Bagan, Mandalay, Monywa are very nice  places to visit during Monson, very few people, when you have sun, the sky is blue with  huge white clouds...It is raining but this is really like that during Monsoon  and it is a nice experience.
Prices:
 
  During the rainy season, you will benefit from low season prices. It is another good reason to come during monsoon.
 
 
Buddhist New Year : 12-17 Avril
This is  Thingyan, The most important festival in Myanmar. Schools are closed (too hot),  everyone is waiting for the rain, and everyone is taking a week off. Many  people are going to a monastery for meditation before the New Year.
On the  practical side, it is difficult to find a bus, car companies and taxis are very  expensive (no one wants to work) and all public services are closed until 18 or  20 of April. It is highly recommended to organize your trip with a local travel agent during New Year holidays.
Beach:
 Many Burmese people are going to the beach to avoid the heat, power outage, and try to find a quiet place far from the water battle you have in the big cities.
 You will have a lot of local people at the beach, hotels are full long time in advance and they usually increase their fare to "peak season" level.
 
 
Participate  :
You could  either jump into the crowd in Yangon or Mandalay and fight with water for 3  days, or you may try to experience traditional water festival in some villages.  It is much more quiet, much more Myanmar also and a very nice, relaxing and fun  experience.
  In big  cities, it will be music, traffic jam, a lot of water fighting. It is also  quite fun, but totally different. Do not forget to put a hat, protect your  camera and mobile for water (not from splash… from fire hose water…), and take  a towel to protect your ear from the strongest water pipe....
 
 
Christmas - New Year:
 
   This is  clearly the main touristic time in Myanmar. It is not crowded, but this is when  you will have the most tourist in Myanmar.
   
 
 - Balloon  over Bagan or Inle flights are usually sold out a long time in advance for this  period.
   - Hotels  prices are the highest with "peak season" prices.
   - Most bookings  are difficult even few months ahead.
 
   
   Beach :
  Hotels  (especially in Ngapali) have special "peak season" prices until the  10 January. If you can avoid these 2 weeks, you will save a lot. If you really  want to go to the beach during these two weeks, book a long time in advance.
 
   
 
 
  November :
  
  November is  busy, not like Christmas but not that far. 
    Many people  are coming in November because this is one of the best months to visit Myanmar  (weather is perfect, cool and sunny) and you have a lot of very interesting  festival all around the country but especially at Inle.
    Best hotels  are usually sold out months in advance. If you are planning to get a guide and a  nice hotel, you should contact your travel agent month in advance (4 months!).