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 6 OCTOBER 2025

WARNINGS:

STRONG WINDS IN HONG KONG ADJACENT WATERS AND SHANGCHUAN
DAO.

WEATHER SITUATION:

TYPHOON MATMO HAS WEAKENED INTO A SEVERE TROPICAL STORM.
 
AT 3 A.M., MATMO WITH MAXIMUM SUSTAINED WINDS OF ABOUT 105
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 21.8
DEGREES NORTH, 108.3 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, UP TO FORCE 6
IN EAST LATER. ISOLATED SHOWERS AND SQUALLY THUNDERSTORMS.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND EAST FORCE 4 
                   VISIBILITY 28 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 03:30 HKT ON 06.10.2025