Temperature

Monthly Temperature Outlook: September 2022

Issued: 30 Aug 2022

For September 2022, the models predict above-normal temperature over much of the ASEAN region.

For September 2022, an increased chance of above-normal temperature is predicted over much of the ASEAN region based on the multi-model ensemble (Figure 4), apart from over parts of the equatorial region where near-normal temperature is predicted. The UK Met Office model (Figure 3) predicts the highest spatial coverage of above-normal temperature, followed by the NCEP model (Figure 1) and then the ECMWF model (Figure 2). THE NCEP model predicts near-normal temperature over southern Mainland Southeast Asia and parts of Borneo and Papua, while the ECMWF model predicts near-normal temperature over much of the equatorial region. The UK Met Office model predicts near-normal temperature over Borneo and Papua.

The model skill is relatively good for above-normal temperature for most of the ASEAN regional, and low to moderate for near-normal temperature for the equatorial region.

icon
Figure 1: Temperature tercile summary predictions of NCEP model for September 2022 (contains modified Copernicus C3S information).
icon
Figure 2: Temperature tercile summary predictions of ECMWF model for September 2022 (contains modified Copernicus C3S information).
icon
Figure 3: Temperature tercile summary predictions of UK Met Office model for September 2022 (contains modified Copernicus C3S information).
icon
Figure 4: Temperature tercile summary predictions of the multi-model ensemble for September 2022 (contains modified Copernicus C3S information).
icon
Figure 5: Average climatological temperature for September 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.