Myanmar is the wonderful land with different landscapes and attractions. So, the weather in Myanmar varies depending on location and in the highlands, on elevation. The climate of Myanmar is tropical/subtropical and has main three seasons, a cool winter from November to February, a hot summer season in March and April and a rainy season from May to October, dominated by the southwest monsoon. The best time to visit Myanmar is hot and winter seasons.
For more further information, please check this link https://www.moezala.gov.mm/daily-weather-forecast%20 which has updated weather news about Myanmar.