Heavy early-June rainfall from active southwest monsoon flows and frequent thunderstorms has already delivered 199.5 mm by mid-month, placing totals near or above the long-term June average of roughly 400–456 mm and positioning 500 mm+ as the clear market leader at 55%. The Hong Kong Observatory’s seasonal outlook for June–August signals normal to below-normal rainfall overall, citing developing El Niño conditions that often suppress later-summer precipitation, yet short-term forecasts continue to highlight unsettled patterns with additional heavy showers possible. Traders thus weigh the wet start and monsoon persistence more heavily than the drier seasonal signal, with any tropical cyclone activity or final Observatory data releases remaining key variables for the month’s total.