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【Sea Conditions】
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(1) Prevailing
Wind:
The wind directions from
October to February are mostly NE whereas from June to September are SW
and S.
·
(2) Wind Scale:
Slight breeze or gentle breeze in the summer; fresh breeze or near gale
(about 5-7 grade on the beau fort wind scale) in the winter.
·
(3) Monsoon:
In the winter, the NE monsoon is an extremely strong wind; sometimes
reaching a gale or grade 9 on the beau fort wind scale.
·
(4) Typhoon:
The typhoon season is normally from June to November; usually causing
strong swells in the port.
·
(5) Precipitation:
According to the records of rainfall during 1911-1997, the annual mean
precipitation is 2,079.40
mm and the monthly mean precipitation is 193.3 mm; most of the
rainfall happened from May to October especially in typhoon seasons.
·
(6) Temperature:
According to the records of temperature during 1911-1997, the annual mean
temperature is 22.8°C
in August; the lowest monthly mean temperature is 17.4°C in January and 17.7°C in February.
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(7) Tides:
According to the statistics during 1951-1974 of this port
(a)
Mean High-Water Tide Level (MHWL): +181 cm
(b)
Mean Low-Water Tide Level (MLWL): +84 cm
(c)
Mean Tide Level (MWL): +133 cm
(d)
Highest High-Water Tide Level (HHWL): +305 cm
(e)
Lowest Low-Water Tide Level (LLWL): -28 cm
·
(8) Littoral Current:
According to the pilot information, the littoral current around this port
are N during flood tide and S during ebb tide with a speed about 1~1 1/2
knots.
Update:10/22/2010 |