Subseasonal Weather Outlook (1 – 15 January 2020)

Issued 2 January 2020
Valid for weeks 1 and 2: 1 – 15 January 2020


Figure 1: Rainfall Outlook


Figure 2: Temperature Outlook


In the first fortnight of January 2020, drier than normal conditions are forecast over parts of the central Philippines and southern Viet Nam. Similar drier than normal conditions are forecast over northern Sumatra, western Peninsular Malaysia and southern Thailand but these conditions are expected to return to normal in the second week of the fortnight.

Meanwhile, it is forecast to be wet over eastern Indonesia, including over Sulawesi and Papua where wet conditions are expected to persist throughout the fortnight. Elsewhere in the ASEAN region, normal conditions are expected.

It is forecast to be warmer than normal over most parts of the northern ASEAN region as well as over Sarawak and Sabah.

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.