Category Archives: Regional Weather Outlook for Year 2024

Drier conditions are predicted over southern and eastern Mainland Southeast Asia and the Philippines in the next fortnight (5 – 18 August). Drier conditions are also predicted over the southern Maritime Continent in the next fortnight.

Wetter conditions are predicted over much of the equatorial region in the next fortnight (5 – 18 August).

Warmer than usual temperature is predicted over much of southern and eastern Mainland Southeast Asia, and the Philippines in the next fortnight (5 – 18 August). Warmer than usual temperature is also predicted over parts of the western and southern Maritime Continent in the next fortnight.

No Madden-Julian Oscillation (MJO) signal was present during end of July based on the RMM index. Most models predict no significant 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.

In Week 1 (22 – 28 July), wetter conditions are predicted over most of northern Mainland Southeast Asia. In Week 2 (29 July – 4 August), drier conditions are predicted over most of the southern half of Mainland Southeast Asia and parts of northern and central Philippines.

Elsewhere, drier conditions are predicted over much of the equatorial region in Week 1 (22 – 28 July), while wetter conditions are predicted over this region in Week 2 (29 July – 4 August).

Warmer than usual temperature is predicted over the Maritime Continent and parts of southern and eastern Mainland Southeast Asia in the next fortnight (22 July – 4 August).

A Madden-Julian Oscillation (MJO) signal was present over the Maritime Continent (Phases 4 and 5) during mid-July based on the RMM index. While most models predict this signal to decay and become indiscernible during the forecast period, some models predict the signal to propagate to Phase 6 (Western Pacific) during Week 1 of 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.

In Week 1 (8 – 14 July), drier conditions are predicted over most of northern Mainland Southeast Asia.

In Week 2 (15 – 21 July), wetter conditions are predicted over the southern half of Mainland Southeast Asia, while drier conditions are predicted over most of the southern half of the Maritime Continent.

Warmer than usual temperature is predicted over most of the Maritime Continent and northern Mainland Southeast Asia in the next fortnight (8 – 21 July).

No clear Madden-Julian Oscillation (MJO) signal was present at the start of July based on the RMM index. Most models predict no significant 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.

Wetter conditions are predicted over much of Mainland Southeast Asia and the Philippines in Week 1 (24 – 30 June). These wetter conditions are predicted to persist in Week 2 (1 – 7 July), although with less confidence over the Philippines.

Warmer than usual temperature is predicted over the southern half of Southeast Asia in the next fortnight (24 June – 7 July).

No Madden-Julian Oscillation (MJO) signal was present in mid-June based on the RMM index. Most models predict no significant 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.

Wetter conditions are predicted over western Mainland Southeast Asia in Week 1 (10 – 16 June). Drier conditions are predicted over parts of the western Maritime Continent and southern Mainland Southeast Asia in Week 1 (10 – 16 June).

Warmer than usual temperature is predicted over most of the Maritime Continent in the next fortnight (10 – 23 June). Warmer than usual temperature is also predicted over the southern half of Mainland Southeast Asia in Week 2 (17 – 23 June).

No Madden-Julian Oscillation (MJO) signal was present at the start of June based on the RMM index. Most models predict no significant 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.

Wetter conditions are predicted over most of Mainland Southeast Asia in Week 1 (27 May – 2 June).

Drier conditions are predicted over much of the western Maritime Continent in Week 2 (3 – 9 June).

Warmer than usual temperature is predicted over the Maritime Continent and the southern parts of Mainland Southeast Asia in the next fortnight (27 May – 9 June).

A Madden-Julian Oscillation (MJO) signal was present over the Indian Ocean (Phases 2 and 3) in the third week of May based on the RMM index. Most models predict this signal to propagate eastwards through the Maritime Continent (Phases 4 and 5) in Week 1, before weakening and becoming inactive in Week 2.

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.

Drier conditions are predicted over much of the central and southern parts of Mainland Southeast Asia and northern parts of the Maritime Continent in Week 1 (29 April – 5 May). These drier conditions are predicted to persist over much of the northeastern Maritime Continent and ease elsewhere in Week 2 (6 – 12 May).

Wetter conditions are predicted over much of the equatorial region in the next fortnight (29 April – 12 May).

Warmer than usual temperature is predicted to persist over most of Southeast Asia in the next fortnight (29 April – 12 May).

No Madden-Julian Oscillation (MJO) signal was present in the middle of April based on the RMM index. Some models predict an MJO signal to develop over the Indian Ocean (Phase 3) and then propagate through the Maritime Continent (Phases 4 and 5) during Week 1, and through the Western Pacific (Phases 6 and 7) during Week 2. Other models predict no significant 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.

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.

Drier conditions are predicted over much of central and southern Mainland Southeast Asia and northern parts of the Maritime Continent in the next fortnight (1 – 14 April).

Wetter conditions are predicted over much of the southern half of the Maritime continent in the next fortnight (1 – 14 April).

Warmer than usual temperature is predicted over most of Southeast Asia in the next fortnight (1 – 14 April).

A Madden-Julian Oscillation (MJO) signal was observed over the Western Hemisphere (Phase 1) towards the end of March based on the RMM index. Most models predict the signal to decay over the Western Hemisphere, becoming indiscernible by the start of Week 1. Some models predict the signal to emerge over the Indian Ocean (Phase 3) during Week 1 and propagate eastwards through the Maritime Continent (Phases 4 and 5) during Week 2.

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.