SOUTH CHINA COASTAL WATERS

(NOT TO BE ISSUED AFTER 7:45 P.M.)

WEATHER INFORMATION FOR SOUTH CHINA COASTAL WATERS ISSUED
BY THE HONG KONG OBSERVATORY AT 6:45 P.M. ON 1 DECEMBER 2025

WARNINGS:

STRONG WINDS IN NAN'AO, SHANWEI, SOUTH OF HONG KONG AND
SHANGCHUAN DAO.

WEATHER SITUATION:

THE NORTHEAST MONSOON IS AFFECTING THE SOUTH CHINA COASTAL
WATERS.

TROPICAL STORM KOTO HAS WEAKENED INTO A TROPICAL DEPRESSION.
 
AT 7 P.M., KOTO WITH MAXIMUM SUSTAINED WINDS OF ABOUT 55
KILOMETRES PER HOUR NEAR ITS CENTRE WAS LOCATED AT 14.7
DEGREES NORTH, 111.5 DEGREES EAST. IT IS FORECAST TO BE
SLOW-MOVING, LINGERING OVER THE CENTRAL TO SOUTHERN PART OF
THE SOUTH CHINA SEA AND WEAKEN GRADUALLY.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

EAST TO NORTHEAST FORCE 4 TO 5.
A FEW RAIN PATCHES.
MODERATE SEAS.

NAN'AO:
NORTHEAST FORCE 5 TO 6.
MODERATE TO ROUGH SEAS.

SHANWEI, SOUTH OF HONG KONG AND SHANGCHUAN DAO:
EAST TO NORTHEAST FORCE 4 TO 5, OCCASIONALLY FORCE 6.
MODERATE TO ROUGH SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

EAST TO NORTHEASTERLY WINDS OF FORCE 6 TO 7, BECOMING UP TO
FORCE 8 IN EAST.

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND CALM 
                   VISIBILITY 40 KILOMETRES

SHANTOU            WIND EAST-SOUTHEAST FORCE 2 
                   VISIBILITY 30 KILOMETRES

HUANGMAOZHOU       WIND EAST FORCE 3

MACAU              WIND SOUTH-SOUTHEAST FORCE 1 
                   VISIBILITY 7 KILOMETRES

XISHA              WIND EAST-NORTHEAST FORCE 3 
                   VISIBILITY 22 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 18:46 HKT ON 01.12.2025