SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 5:30 A.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 3:30 A.M. ON 22 AUGUST 2025

WEATHER SITUATION:

A SOUTHERLY AIRSTREAM IS AFFECTING THE SOUTH CHINA COASTAL
WATERS. MEANWHILE, AN AREA OF LOW PRESSURE IS BRINGING
UNSETTLED WEATHER TO THE SEAS EAST OF THE PHILIPPINES.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

SOUTH FORCE 4.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

NAN'AO AND SHANWEI:
WEST FORCE 4, BECOMING NORTHEAST UP TO FORCE 5 LATER.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

SOUTH OF HONG KONG:
SOUTH FORCE 4.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

SHANGCHUAN DAO:
SOUTH TO SOUTHEAST FORCE 4, OCCASIONALLY FORCE 5.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO NORTHEASTERLY WINDS OF FORCE 5 TO 6, UP TO FORCE 8
IN WEST LATER. OCCASIONAL HEAVY SQUALLY SHOWERS AND
THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND SOUTH-SOUTHWEST FORCE 1 
                   VISIBILITY OVER 50 KILOMETRES

SHANTOU            WIND SOUTH FORCE 1 
                   VISIBILITY 29 KILOMETRES

HUANGMAOZHOU       WIND SOUTH-SOUTHEAST FORCE 3

MACAU              WIND SOUTH-SOUTHWEST FORCE 1 
                   VISIBILITY OVER 70 KILOMETRES

XISHA              WIND SOUTHEAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 03:30 HKT ON 22.08.2025