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South China Coastal Waters

Bulletin updated at 05:30 HKT 13/Dec/2025

By the Hong Kong Observatory at 5:30 a.m. on 13 Dec 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:
An easterly airstream is affecting the coastal waters of
Guangdong. Besides, a cold front is expected to move across
the south China coastal waters later today.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East to northeast force 5 to 6, becoming north up to force
7.
A few rain patches.
Moderate to rough seas.

Nan'ao:
North to northeast force 6 to 7, up to force 8 later.
Rough seas, becoming very rough later.

Shanwei:
East to northeast force 5 to 6, occasionally force 7,
becoming north up to force 7.
Moderate to rough seas.

South of Hong Kong and Shangchuan Dao:
East to northeast force 5 to 6, becoming north up to force
7.
Moderate to rough seas.

Outlook for the following 48 hours 
North to northeasterly winds of force 6 to 7, up to force 8
in east at first.

Latest reports from south china coastal weather stations
--------------------------------------------------------

Waglan Island       Wind east-northeast force 5 
                    Visibility 20 kilometres 

Shantou             Wind east-southeast force 1 
                    Visibility 20 kilometres in rain 

Huangmaozhou        Wind east force 6 
                    

Macau               Wind east force 3 
                    Visibility 17 kilometres 

Xisha               Wind east-northeast force 3 
                    Visibility 14 kilometres 



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