Subseasonal Weather Outlook (16 – 31 March 2020)

Issued 13 March 2020
Valid for weeks 3 and 4: 16 – 31 March 2020


Figure 1: Rainfall Outlook


Figure 2: Temperature Outlook


For the second fortnight of March 2020, there is an increased chance of wetter conditions over some parts of the southern Maritime Continent in Week 3, easing in Week 4.

Drier conditions are expected to persist over northern Sumatra, Peninsular Malaysia, southern parts of Mainland Southeast Asia, northern Borneo and the Philippines throughout the fortnight.

For temperature, warmer conditions are expected over most parts of Mainland Southeast Asia for the second fortnight of March 2020. Warmer conditions are also expected over the southern-most parts of the Maritime Continent in Week 4.

A weak Madden-Julian Oscillation (MJO) is currently present in the eastern Maritime Continent. While most models predict the MJO to weaken at the start of the forecast period, there is a possibility of the MJO re-emerging over the Indian Ocean towards the end of Week 3.

The outlook is assessed for the region in general. For specific updates on the national scale, the relevant ASEAN National Meteorological and Hydrological Services should be consulted.