Current forecasts from global models including ECMWF and GFS, aligned with China Meteorological Administration guidance, indicate Qingdao’s May 18 maximum will likely settle near the seasonal climatological baseline of 19–21 °C. The moderating influence of the Yellow Sea surface temperatures continues to suppress diurnal warming along the Shandong coast, while a weak high-pressure ridge provides only limited southerly advection. Ensemble spreads remain tight around these values, with only modest upside risk from localized sea-breeze suppression or downside from increased cloud cover. Traders therefore assign the highest implied probabilities to the 19 °C–21 °C outcomes, reflecting both historical mid-May distributions and the absence of strong anomalous forcing in the latest model runs.