Traders currently favor a 17°C or 16°C daily maximum in Cape Town on July 22, with those outcomes together capturing nearly 70% of market-implied probability, reflecting tight consensus in short-range model guidance. Primary drivers include the position and strength of the South Atlantic high-pressure system and any approaching mid-latitude cold fronts that typically moderate winter highs in the region’s Mediterranean climate. Ensemble runs from global models show minimal spread around 16–17°C, with small differences arising from the precise timing of onshore flow versus katabatic winds from the interior. Historical July maxima average near 17°C, providing a useful baseline, though day-to-day variability remains high. Updated model cycles and official South African Weather Service briefings over the next 48 hours will likely tighten the range ahead of resolution.