Temperature

Monthly Temperature Outlook: November 2023

Issued: 31 Oct 2023

For November 2023, above-normal temperature is predicted over much of the ASEAN region.

For November 2023, above-normal temperature is predicted over much of the ASEAN region based on the multi-model ensemble (Figure 4), with an exception over southeastern tropical Indian Ocean where below-normal temperature is predicted. All three models agree with high confidence on above-normal temperature over most of the Maritime Continent and eastern Mainland Southeast Asia. The UK Met Office model (Figure 3) has the highest confidence of above-normal rainfall over the rest of Mainland Southeast Asia, followed by the NCEP and ECMWF models (Figures 1 and 2). All three models also predict below-normal temperature over the southeastern tropical Indian Ocean. Models’ skill is moderate to good for predicting below- and above-normal temperature over most of the ASEAN region.

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Figure 1: Temperature tercile summary predictions of NCEP model for November 2023 (contains modified Copernicus C3S information).
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Figure 2: Temperature tercile summary predictions of ECMWF model for November 2023 (contains modified Copernicus C3S information).
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Figure 5: Average climatological temperature for November based on ERA5 (Reference period: 1991-2020).

The qualitative 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.