Recent forecasts from multiple models indicate Sao Paulo's overnight low on August 25 will likely settle near 14°C, with trader consensus split tightly across 13–14°C bins due to subtle differences in projected radiative cooling and boundary-layer mixing. A lingering cold air mass advected from the south has suppressed temperatures below seasonal averages, while increasing southeasterly winds and variable cloud cover—ranging from mostly clear to overcast—will determine how efficiently heat escapes overnight. Dew points near 12–13°C set a practical floor on achievable minima, and any thicker low-level stratus could limit further drops by trapping longwave radiation. Updated model runs overnight and early-morning observations from local stations will clarify whether conditions favor the 13°C or 14°C threshold before the daily minimum is recorded.