Cape Town's August minimum temperatures typically range from 9–11°C under the influence of the cold Benguela Current and occasional mid-latitude cold fronts, but the near-even market split between 17°C-or-higher and 7°C-or-below reflects genuine forecast uncertainty for the 25th. Official guidance from the South African Weather Service and recent model runs point to a mild minimum near 13°C amid sunny, stable conditions with light southeasterly flow, yet small shifts in frontal timing or ridge strength could easily push readings several degrees either way. Traders are weighing historical variability—where August lows have occasionally dipped below 8°C or stayed above 12°C—against the narrow two-day window before resolution. Upcoming SAWS updates and any new model consensus will likely drive the next moves in implied probabilities.