Subseasonal Weather Outlook (16 – 30 June 2020)

Issued 15 June 2020
Valid for weeks 3 and 4: 16 – 30 June 2020


Figure 1: Rainfall Outlook


Figure 2: Temperature Outlook


Wetter conditions are expected over most parts of the equatorial Maritime Continent in the second fortnight of June 2020.

Over northern Southeast Asia, drier conditions are expected in the second fortnight of June except for some coastal parts of Myanmar where wetter conditions are expected in Week 3.

Warmer conditions are expected over most parts of northern Southeast Asia, especially in Week 4. A higher likelihood of warmer conditions is also expected around the southeastern part of the Maritime Continent.

A Madden-Julian Oscillation (MJO) is currently present over the Indian Ocean. During the forecast period, most models predict the MJO to slow down as it enters the Maritime Continent. If the MJO continues to propagate, this would increase the likelihood of wetter conditions in the Maritime Continent.

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.