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 6 OCTOBER 2025

WARNINGS:

STRONG WINDS IN HONG KONG ADJACENT WATERS AND SHANGCHUAN
DAO.

WEATHER SITUATION:

AT 5 A.M., SEVERE TROPICAL STORM MATMO WITH MAXIMUM
SUSTAINED WINDS OF ABOUT 90 KILOMETRES PER HOUR NEAR ITS
CENTRE WAS LOCATED AT 21.8 DEGREES NORTH, 108.0 DEGREES
EAST, IT IS FORECAST TO MOVE WEST-NORTHWEST AT ABOUT 15
KILOMETRES PER HOUR INTO INLAND GUANGXI AND WEAKEN
GRADUALLY.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST TO SOUTHEAST FORCE 4 TO 5, UP TO FORCE 6 AT FIRST.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS, ROUGH AT FIRST.

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

SOUTH OF HONG KONG:
SOUTHEAST FORCE 4 TO 5.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS.

SHANGCHUAN DAO:
SOUTH TO SOUTHEAST FORCE 4 TO 5, UP TO FORCE 6 AT FIRST.
ISOLATED SHOWERS AND THUNDERSTORMS.
MODERATE SEAS, ROUGH AT FIRST.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO NORTHEASTERLY WINDS OF FORCE 4 TO 5, BECOMING UP TO
FORCE 6 IN EAST. ISOLATED SHOWERS AND SQUALLY THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST FORCE 4 
                   VISIBILITY 31 KILOMETRES

SHANTOU            WIND EAST-SOUTHEAST FORCE 1 
                   VISIBILITY 30 KILOMETRES

MACAU              WIND EAST FORCE 2 
                   VISIBILITY 45 KILOMETRES

XISHA              WIND SOUTH FORCE 2 
                   VISIBILITY 13 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 05:30 HKT ON 06.10.2025