General Weather Forecast for 2025 Rainy Season
Issued on 28.4.2025
Onset and withdrawal of Southwest Monsoon
Southwest monsoon is likely to set into the whole country during (1st – 5th of June), 2025. Southwest monsoon is likely to retreat from the whole country 1st week of October, 2025.
Early Monsoon Period Forecast
The early monsoon period is establishment of Southwest Monsoon over Myanmar to the end of June. Three Low Pressure Areas may form over the Bay of Bengal and one may further intensify into the Depression. During the early monsoon period, monsoon will be moderate to strong. Rain will be expected above normal in Yangon, Bago, Ayeyarwady Regions and Mon, Rakhine States and about normal in Naypyitaw, Mandalay, Magway, Sagaing, Taninthayi Regions and Kachin, Kayah, Kayin, Chin, Shan States
Mid Monsoon Period Forecast
Mid Monsoon period is a period of starting from 1st July to the end of August. Three Low Pressure Areas may form over the Bay of Bengal and two may further intensify into the Depressions. During the mid-monsoon period, monsoon will be moderate to strong. Rain or thundershower will be expected below normal in Magway, Sagaing Regions and about normal in Naypyitaw, Yangon, Mandalay, Bago, Ayeyarwady, Taninthayi Regions and Kachin, Kayah, Kayin, Chin, Mon, Rakhine, Shan States.
Late Monsoon Period Forecast
Late Monsoon period is a period starting from 1st September to the date of Monsoon withdrawal from the Whole Country. Three Low Pressure Areas may form over the Bay of Bengal and two may further intensify into the Depressions. During the late monsoon period, monsoon will be moderate. Rain will be expected about normal in Naypyitaw, Yangon, Mandalay, Bago, Magway, Sagaing, Ayeyarwady, Taninthayi Regions and Kachin, Kayah, Kayin, Chin, Mon, Rakhine, Shan States.