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 21 DECEMBER
2025

WARNINGS:

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

WEATHER SITUATION:

THE NORTHEAST MONSOON IS AFFECTING THE SOUTH CHINA COASTAL
WATERS.  A REPLENISHMENT OF THE NORTHEAST MONSOON IS
EXPECTED TO REACH THE COASTAL WATERS OF GUANGDONG THIS
MORNING.

AREA FORECASTS FOR THE NEXT 24 HOURS

HONG KONG ADJACENT WATERS:

NORTHEAST FORCE 4 TO 5, UP TO FORCE 7 LATER.
MODERATE SEAS, BECOMING ROUGH LATER.

NAN'AO:
NORTHEAST FORCE 5 TO 6, BECOMING UP TO FORCE 8.
MODERATE TO ROUGH SEAS, BECOMING VERY ROUGH.

SHANWEI AND SOUTH OF HONG KONG:
EAST TO NORTHEAST FORCE 5 TO 6, BECOMING UP TO FORCE 7.
MODERATE TO ROUGH SEAS.

SHANGCHUAN DAO:
EAST TO NORTHEAST FORCE 5 TO 6, UP TO FORCE 7 LATER.
MODERATE TO ROUGH SEAS.

OUTLOOK FOR THE FOLLOWING 48 HOURS

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

LATEST REPORTS FROM SOUTH CHINA COASTAL WEATHER STATIONS

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WAGLAN ISLAND      WIND NORTH-NORTHEAST FORCE 2

SHANTOU            WIND SOUTHWEST FORCE 1 
                   VISIBILITY 8 KILOMETRES

HUANGMAOZHOU       WIND EAST FORCE 4

MACAU              WIND NORTHEAST FORCE 1 
                   VISIBILITY 22 KILOMETRES

XISHA              WIND EAST-NORTHEAST FORCE 3 
                   VISIBILITY 12 KILOMETRES

DISPATCHED BY HONG KONG OBSERVATORY AT 03:30 HKT ON 21.12.2025