Subseasonal Weather Outlook (23 June – 6 July 2025)
Issued: 18 June 2025
First forecast week: 23 – 29 June 2025
Second forecast week: 30 June – 6 July 2025
Drier conditions are predicted over much of the western and central Maritime Continent in Week 1 (23 – 29 June). Drier conditions are then predicted over southern Mainland Southeast Asia and the southern half of the Philippines in Week 2 (30 June – 6 July).
Warmer than usual temperatures are predicted over most of the Maritime Continent in Week 1 (23 – 29 June). These warmer temperatures are predicted to persist over most of the Maritime Continent as well as develop over southern Mainland Southeast Asia in Week 2 (30 June – 6 July).
There was no Madden-Julian Oscillation (MJO) signal in the middle of June. 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.