Subseasonal Weather Outlook (15 – 28 April 2024)

Issued: 12 April 2024
First forecast week: 15 – 21 April 2024
Second forecast week: 22 – 28 April 2024


Figure 1: Rainfall Outlook


Figure 2: Temperature Outlook

Drier conditions are predicted over much of the central and southeastern parts of Mainland Southeast Asia and the northern parts of the Maritime Continent in the next fortnight (15 – 28 April).

Wetter conditions are predicted over most of the southern half of the Maritime Continent in Week 2 (22 – 28 April).

Warmer than usual temperature is predicted over Southeast Asia in the next fortnight (15 – 28 April).

A Madden-Julian Oscillation (MJO) signal was present over the Maritime Continent (Phase 4) in the second week of April based on the RMM index. Most models predict this MJO signal to decay over the Maritime Continent and remain inactive during the forecast period.

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.