Subseasonal Weather Outlook (1 – 15 October 2019)

Issued 30 September 2019
Valid for weeks 1 and 2: 1 October – 15 October


Figure 1: Rainfall Outlook

Figure 2: Temperature Outlook

Drier conditions can be expected over most parts of the ASEAN region in the first fortnight of October 2019. However, wetter conditions are forecast over the equatorial ASEAN region, including northern Sumatra, Peninsular Malaysia, Sarawak, and Kalimantan in the first week under the influence of the Madden – Julian Oscillation (MJO), which is currently in Phase 1. The MJO is forecast to weaken during the first week.

Warmer-than-average conditions are also expected to prevail over much of the Mekong sub-region.

The outlook is assessed for the region in general. For specific updates on the national scale, the relevant ASEAN National Meteorological and Hydrological Services should be consulted.