Recent forecasts from meteorological models indicate a daily maximum near 28°C for São Paulo on August 16, 2026, driven by scattered cloud cover and light winds under typical winter high-pressure influence in the Southern Hemisphere. This aligns with climatological baselines of 23–25°C for August but reflects modest warming from recent model runs, positioning 28°C as the market leader at 42.5% implied probability followed by 29°C at 24.5%. Key variables include urban heat island effects and precise timing of any afternoon clearing, with official observations from stations like Mirante de Santana expected to resolve the market. Updated guidance later today could shift probabilities if conditions deviate from current consensus.