Official measurements from the Hong Kong Observatory confirm a daily maximum of 27°C on July 31, 2026, under the influence of a subtropical ridge that brought generally fine conditions with moderate southerly flow and limited daytime heating. This value aligns with regional station readings and climatological expectations for late July, when typical highs reach 30–32°C but can moderate due to cloud cover, higher humidity, or post-typhoon effects from earlier systems like Noul. Trader consensus at 100% for 27°C reflects the final verified data release, as prediction markets aggregate real-capital assessments of official records rather than forecasts. Revisions remain possible only if the Observatory issues corrected observations from its primary site or adjusts for instrumental factors, though such changes are rare after initial publication.