Temperature
Monthly Temperature Outlook: March 2025
Issued: 3 Mar 2025
For March 2025, above-normal temperature is predicted for much of the Maritime Continent and the western half of Mainland Southeast Asia.
For March 2025, above-normal temperature is predicted over most parts of the Maritime Continent, except for over the Malay Peninsula and northern half of the Philippines, based on the multi-model ensemble (Figure 4). All three models agree on above-normal temperature over the eastern and central Maritime Continent (Figures 1-3), with the ECMWF and UK Met Office models also predicting above-normal temperature much of the western region. The NCEP model (Figure 1) shows disagreement with other models also over parts of the southwestern Maritime Continent where it predicts near- to above-normal temperature. Model skill is relatively good for the Maritime Continent.
For Mainland Southeast Asia, above-normal temperature is predicted for the western region, based on the multi-model ensemble (Figure 4), with below- to near-normal temperature elsewhere. All three models predict above-normal temperature over the western region, with the NCEP model predicting above-normal temperature also over the eastern half, where the other two models predicting below- to near-normal temperature. Model skill is moderate to good for Mainland Southeast Asia at this time of year.

Figure 1: Temperature tercile summary predictions of NCEP model for March 2025 (contains modified Copernicus C3S information).

Figure 2: Temperature tercile summary predictions of ECMWF model for March 2025 (contains modified Copernicus C3S information).

Figure 3: Temperature tercile summary predictions of UK Met Office model for March 2025 (contains modified Copernicus C3S information).

Figure 4: Temperature tercile summary predictions of the multi-model ensemble for March 2025 (contains modified Copernicus C3S information).
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.