**Trader sentiment for Hong Kong’s highest temperature on August 13, 2026, centers on the lingering effects of Typhoon Dolphin’s outer subsiding airflow, which drove record heat earlier in the week, tempered by expectations of increasing cloud cover and possible showers mid-week.** Recent observations show the Hong Kong Observatory recorded 36.9 °C on August 9—the highest since records began in 1884—with some inland sites exceeding 39 °C under the typhoon’s influence. The system, now weakening inland over eastern China, is forecast to reduce its heating impact by mid-week. Official and model guidance point to daytime maxima near 33–34 °C under partly cloudy to cloudy skies, with thundery showers possible later in the period that could cap peaks through evaporative cooling and reduced insolation. Seasonal context from the Observatory indicates normal-to-above-normal temperatures for August–October amid broader regional warmth, yet short-term variability dominates. Key differentiators between the closely matched 32 °C (33.5 %) and 33 °C (40.5 %) outcomes include the precise timing and coverage of any convective activity, boundary-layer moisture, and local wind patterns that modulate the urban heat island. Higher outcomes (34 °C+) remain possible if subsidence persists longer than anticipated, while lower readings would require earlier or heavier rainfall. Updated HKO guidance and numerical model runs over the next 24–48 hours will likely shift these probabilities most directly.