Traders see the August 16 minimum in Hong Kong clustered tightly between 27–28 °C because seasonal forecasts from the Hong Kong Observatory call for normal to above-normal temperatures amid a persistent warm, humid summer regime. Nighttime radiative cooling is limited by high dew points, light winds, and frequent cloud cover or showers that reduce clear-sky heat loss, keeping lows near the long-term August average of 26–28 °C. Model consensus shows only modest day-to-day variability, with no approaching cold front or tropical cyclone expected to alter the pattern before resolution. Minor differences between 27 °C and 28 °C hinge on exact cloud timing and wind speed during the pre-dawn hours, while lower probabilities for 26 °C or below reflect the low historical frequency of such readings in mid-August.