Traders see the highest temperature in Guangzhou on June 23 centering near 35–37 °C because short-range models from the China Meteorological Administration and global ensembles currently favor partly cloudy to mostly cloudy skies with scattered thunderstorms. These conditions limit peak solar heating while a moist southerly monsoon flow keeps surface temperatures elevated in the mid-30s. Recent 24–48 hour guidance has shown little shift, with official local forecasts listing daily maxima of 34–36 °C and isolated showers that can suppress readings by 1–2 °C if convection develops earlier than expected. Differentiating the tightly bunched 35 °C, 36 °C, and 37 °C outcomes therefore hinges on precise timing of cloud breaks versus rainfall, boundary-layer moisture, and any late-day sea-breeze effects—variables that remain within the typical uncertainty range of numerical weather prediction at this lead time.