Recent forecast models and observational data from meteorological sources indicate a daytime maximum of 35°C in Guangzhou on September 15, 2026, driven by moderate southeasterly flow, high humidity near 75%, and partly cloudy conditions allowing sufficient solar heating despite light rain chances. This aligns with late-summer climatology where average highs reach about 32°C, with historical peaks on the date up to 35.6°C in prior years. Trader consensus at near-100% implied probability for 35°C reflects tight model agreement on afternoon temperatures, though realistic deviations could arise from stronger convective activity or thicker cloud cover suppressing peaks by 1–2°C, or clearer skies enabling a brief exceedance. Updated observations from official stations will confirm resolution thresholds.