SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 9:45 A.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 5:30 A.M. ON 17 AUGUST 2026

WEATHER SITUATION:

A BROAD TROUGH OF LOW PRESSURE IS AFFECTING THE SOUTH CHINA
COASTAL WATERS.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

SOUTHWEST FORCE 3 TO 4, BECOMING EAST TO NORTHEAST FORCE 4.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
SLIGHT TO MODERATE SEAS.

NAN'AO AND SHANWEI:
SOUTHWEST FORCE 4 TO 5, BECOMING EAST TO NORTHEAST UP TO
FORCE 5.
OCCASIONAL HEAVY SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

SOUTH OF HONG KONG AND SHANGCHUAN DAO:
SOUTHWEST FORCE 4 TO 5, BECOMING EAST TO NORTHEAST UP TO
FORCE 5 LATER.
SCATTERED SHOWERS AND SQUALLY THUNDERSTORMS.
MODERATE SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO NORTHEASTERLY WINDS OF FORCE 4 TO 5, OCCASIONALLY
FORCE 6. OCCASIONAL HEAVY SHOWERS AND SQUALLY THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND WEST FORCE 4 
                   VISIBILITY 46 KILOMETRES

SHANTOU            WIND WEST-SOUTHWEST FORCE 1 
                   VISIBILITY 13 KILOMETRES

HUANGMAOZHOU       WIND WEST FORCE 4

MACAU              WIND SOUTHWEST FORCE 2 
                   VISIBILITY 35 KILOMETRES

XISHA              WIND SOUTHWEST FORCE 3 
                   VISIBILITY 18 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 05:30 HKT ON 17.08.2026