The southwest monsoon, or habagat, remains the dominant driver of Manila's temperatures, with PAGASA forecasts for August 18 showing partly cloudy to cloudy skies, isolated thunderstorms, and highs centered around 29–31°C amid 60% rain chances. Persistent cloud cover limits solar heating while scattered rainfall and high humidity enhance evaporative cooling, keeping peak readings near or below seasonal averages of 30–31°C. Recent low-pressure areas and tropical systems outside the Philippine Area of Responsibility have sustained this pattern without direct landfall impacts. Model consensus points to modest day-to-day variability, with any breaks in convection potentially allowing brief spikes toward 32°C, though the prevailing moisture flux favors the market's clustered 28–29°C outcomes. Updated PAGASA briefings and next model runs will refine these thresholds ahead of resolution.