**Forecast models for São Paulo on August 14 point to a maximum near 27°C as the most probable outcome, consistent with the market's 46.5% implied probability for that threshold.** Above-average temperatures across much of Brazil this month, driven by a persistent warmer air mass and limited frontal activity, have shifted expectations upward from the long-term August high of roughly 23–25°C. Current guidance from sources such as timeanddate and Climatempo shows highs in the mid-to-upper 20s Celsius under mostly cloudy to scattered conditions, with minimal rainfall reducing daytime cooling. Traders appear to weigh the risk of slight model variability—some runs allow 26°C or 28°C—while discounting extremes below 25°C or above 29°C given the climatological baseline and lack of strong cold-air intrusions forecast for the immediate period. Updated INMET and regional model runs over the next 24 hours will provide the final resolution inputs.