Official PAGASA forecasts for Metro Manila on July 13 project a daytime high near 29°C under southwest monsoon (habagat) flow, which favors increased cloud cover, scattered showers, and reduced solar insolation that caps peak temperatures. Typical July climatology shows Manila highs averaging 31°C, but persistent moisture and convective activity often suppress readings to the 29–30°C range unless easterly winds briefly clear skies and enhance afternoon heating. The tight market spread between 30°C and 31°C reflects uncertainty over exact timing of thunderstorms and urban heat-island amplification, while probabilities drop sharply above 32°C absent a sustained break in monsoon cloudiness. Updated model runs and PAGASA briefings in the next 48 hours will refine land-surface and boundary-layer conditions ahead of resolution.