Recent weather models indicate sunny, stable conditions over São Paulo on August 19, with daytime heating expected to push the official maximum into the 30–32°C range under clear skies and light winds. This exceeds the month’s climatological average high of roughly 23–25°C, reflecting a warmer-than-normal air mass and strong solar insolation typical of late Southern Hemisphere winter. Official guidance from sources such as timeanddate and AccuWeather currently shows a peak near 30°C (86°F), while ensemble spreads allow modest upside to 31–32°C if afternoon mixing is efficient. Traders have therefore assigned the highest implied probabilities to those two bins, consistent with the narrow uncertainty window for a 24-hour temperature forecast and the market’s focus on precise resolution thresholds.