Recent official forecasts from the Hong Kong Observatory indicate August 28 will feature sunny intervals and isolated showers under subsiding air from nearby tropical systems, with daytime highs likely reaching 31–33 °C amid high humidity that favors convective development. Model runs show modest spread in peak temperature tied to the exact timing of cloud cover and any sea-breeze effects, keeping trader-implied probabilities clustered around 31–32 °C. Historical late-August baselines near 31 °C, combined with the current transition from active southerly flow to hotter conditions, support the market’s emphasis on these narrow thresholds while underscoring forecast uncertainty typical of tropical coastal environments.