**Trader consensus strongly favors 70-120 mm total October precipitation in Hong Kong, with an 85.5% implied probability.** Partial-month data through mid-October show accumulation near 77 mm against the 1991-2020 climatological normal of 120.3 mm, reflecting several early-month rain events followed by drier easterly flow. Hong Kong Observatory forecasts for the remainder of the month indicate predominantly fine, dry conditions under a strengthening anticyclone aloft, with only isolated light rain patches and low significant precipitation probabilities. The expected northeast monsoon influence later in the period further suppresses rainfall, keeping totals likely within or modestly below the historical average. This combination of observed deficit and model consensus for limited additional accumulation underpins the dominant market positioning, though any unexpected late-month tropical moisture could shift outcomes.