Latest KMA observations and ensemble forecasts for Busan indicate partly to mostly cloudy conditions with light easterly winds, supporting an afternoon peak near 25–26 °C under moderate solar heating and sea-breeze moderation. Trader consensus favoring 27 °C or 28 °C reflects uncertainty in cloud-break timing and localized urban heat-island effects that could add 1–2 °C above model guidance. Minor model spread in boundary-layer mixing and dew-point depression keeps the two leading outcomes nearly tied, with resolution hinging on whether the daily maximum reported by official stations crosses the 27 °C threshold before evening cooling sets in.