Trader consensus overwhelmingly favors a 25°C high in Shenzhen on March 21, driven by converging numerical weather prediction models from ECMWF and GFS ensembles, which project a daytime maximum of precisely 25°C under partly cloudy skies and light southerly winds. Historical March data from the China Meteorological Administration shows average highs of 24-26°C in the region, aligning with current mild La Niña-influenced patterns and sea surface temperatures around 24°C in the South China Sea. This positioning is robust absent surprises like an abrupt high-pressure ridge enhancing solar insolation or model underestimation of urban heat island effects, which could realistically push temperatures to 26°C or higher if clear skies persist longer than forecast.