Current numerical weather models, including GFS runs, indicate clear skies and light easterly to southeasterly winds under high pressure will keep overnight minimum temperatures in Cape Town around 14–16°C on September 30. This spring pattern follows a recent warming trend with daytime highs reaching 30–34°C and no approaching cold fronts or significant cloud cover to enhance radiative cooling. Historical September minima average near 9–11°C, yet the current stable anticyclonic setup reduces the likelihood of sharp drops. Market-implied odds reflect this consensus on milder outcomes while assigning notable weight to 8°C or below, consistent with typical ensemble spread and the inherent uncertainty in boundary-layer forecasts for the region. Updated model guidance and South African Weather Service briefings over the next 24 hours will provide the next key data points for resolution.