Short-term forecasts from the Korea Meteorological Administration point to a warming trend over Busan driven by a strengthening high-pressure ridge and southerly flow, positioning the May 18 daytime high near 28–30 °C at Gimhae International Airport station. Clear skies and light winds are expected to enhance daytime heating, though coastal sea breezes may moderate peaks and introduce variability across model ensembles. Historical mid-May climatology for the region shows typical highs of 22–26 °C, so the current setup represents above-average conditions tied to reduced cloud cover and warm advection. Key variables include the exact timing of any frontal passage, humidity levels around 40–60 %, and afternoon sea-breeze strength, all of which could shift the outcome by 1–2 °C. Updated KMA short-range guidance and ensemble runs through May 17 will provide the next resolution-relevant data points.