Subseasonal Weather Outlook (8 – 21 March 2021)

Issued 6 March 2021
First forecast week: 8 March – 14 March
Second forecast week: 15 March – 21 March


Figure 1: Rainfall Outlook


Figure 2: Temperature Outlook


Wetter conditions are expected over the Philippines in Week 1 (8 – 14 March), easing in Week 2 (15 – 21 March). In Week 2, there is also an increased chance of wetter conditions over the Malay Peninsula, Sumatra and coastal parts of western Borneo.

Warmer conditions than usual are expected over northwestern Mainland Southeast Asia in the next fortnight (8 – 21 March).

Current MJO signal is weak. Some models predict an MJO to re-emerge over the Western Hemisphere and Africa (Phases 8 and 1) during the forecast period and propagate eastwards towards the Indian Ocean.

The outlook is assessed for the region in general, where conditions are relative to the average conditions for the corresponding time of year. For specific updates on the national scale, the relevant ASEAN National Meteorological and Hydrological Services should be consulted.