Malaysia does not have the classic four seasons, but rather a with two dominant patterns: the wet Northeast Monsoon (Nov–Mar) affecting the east coast and Borneo, and the drier Southwest Monsoon (May–Sep) affecting the west coast. Inter-monsoon periods bring sudden thunderstorms. Regional differences are significant, and climate change is amplifying extremes like floods, droughts, and haze. For travelers, businesses, and residents, understanding these seasonal nuances is essential for planning, safety, and economic resilience.
| Season | Period | Wind Direction | Key Weather Features | Regions Most Affected | |--------|--------|----------------|----------------------|----------------------| | | November – March | From South China Sea / Pacific | Heavy rainfall, flooding, rough seas | East coast of Peninsular Malaysia (Kelantan, Terengganu, Pahang), western Sarawak | | Southwest Monsoon | May – September | From Sumatra / Indian Ocean | Drier, lower humidity, occasional haze | West coast of Peninsular Malaysia (Selangor, Perak, Penang), southern Sarawak | malaysia seasons weather