Subseasonal Weather Outlook and Review

For western and central Mainland Southeast Asia, wetter conditions are predicted in Week 1 (26 May – 1 June). For the same region in Week 2 (2 – 8 June), drier than usual conditions for this time of the year are predicted.

For the Maritime Continent, drier conditions are predicted over the western and central equatorial region in Week 1 (26 May – 1 June). Wetter conditions are predicted over parts of the southern Maritime Continent in the next fortnight (26 May – 8 June).

Warmer than usual temperatures are predicted over much of the equatorial region in the next fortnight (26 May – 8 June). Warmer than usual temperatures are also predicted over the northeastern parts of Mainland Southeast Asia in Week 2 (2 – 8 June).

There has been no discernible Madden-Julian Oscillation (MJO) signal so far this month. Most models predict no MJO activity 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.

For western and central Mainland Southeast Asia, wetter conditions are predicted in Week 1 (26 May – 1 June). For the same region in Week 2 (2 – 8 June), drier than usual conditions for this time of the year are predicted.

For the Maritime Continent, drier conditions are predicted over the western and central equatorial region in Week 1 (26 May – 1 June). Wetter conditions are predicted over parts of the southern Maritime Continent in the next fortnight (26 May – 8 June).

Warmer than usual temperatures are predicted over much of the equatorial region in the next fortnight (26 May – 8 June). Warmer than usual temperatures are also predicted over the northeastern parts of Mainland Southeast Asia in Week 2 (2 – 8 June).

There has been no discernible Madden-Julian Oscillation (MJO) signal so far this month. Most models predict no MJO activity 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.