Malaysia has a tropical climate. The nation’s daily mean temperature is between 26-28°C, remaining fairly consistent year-round. Rainfall also remains high year-round, with approximately 3,000 mm falling each year. Two monsoon periods are perceived locally, between November-March and May-September, with the east coast of the Malaysian Peninsula, the northeast of Sabah, and southern Sarawak experiencing the most intense and prolonged periods of monsoon rainfall.
- Malaysia reports observed climate changes in its Second National Communication, notably a 0.6-1.2°C increase in temperatures between 1969 and 2009.
- The fastest rates of temperature increase can be seen in the Malaysian peninsula, where the annual minimum temperature has risen 0.32°C per decade between 1969-2015.
- Temperature rises are more pronounced during the two monsoon periods than the inter-monsoon periods (April and October).
- Changes in mean annual rainfall are not significant on a national level.
- Significant increases in mean annual rainfall (100-200mm/yr) have been documented in the northern and western parts of the Malaysian peninsula.
- Changes in seasonal rainfall patterns vary considerably on a sub-national level and trends are hard to identify. Significant increases in rainfall have been documented during the northeast monsoon period, particularly affecting Sabah and Sarawak.
This section provides the options to visualize historical climate data for different timeframes via map and annual cycle chart.