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The
climate at the Adriatic is typically a
Mediterranean one, with mild rainy winters, and
hot and dry summers. The air temperature changes
depending on the area. Thus, summer temperatures
in July will be about 34°C in the northern part,
while in the southern part they will rise even to
38°C. In the winter, the coldest temperatures are
noticed in the northern Adriatic (up to -16°C),
while they will not have exceeded 6°C in the
southern part.
Winds
At the Adriatic Sea, the bora, sirocco and
north-western wind blow most often.
Bora
Bora (Cro.: bura) is a dry, cold downward wind
blowing in bursts from the north-northeast to the
east-northeast direction. The direction in which
the wind blows is mostly influenced by the
configuration of the shore. The strength of bora
is explained by the existence of warm air over the
surface of the sea, and a cold layer of air above
mountain ranges in the littoral, which cause a
strong streaming due to equating of the pressure.
Cold air tends to fill the void which occurs due
to the rising of the warm (lighter) air from the
sea surface. Bora blows mostly in the winter. In
the summer, it usually lasts for a day or several
hours, while, in the winter, it can blow as long
as 14 days.
Sirocco
Sirocco (Cro.: jugo, siroko or silok) is a warm
and moist wind which blows from the direction
east-southeast to south-southwest. Its
consequences are high waves and rain. Sirocco is a
characteristic wind for the southern Adriatic,
where it blows longer and stronger than in the
northern part. In the summer, it usually blows as
long as 3 days, and in the winter even as long as
3 weeks. The signs of the oncoming sirocco are the
calm at the sea, weak changeable winds, dimness of
the horizon, the increase of the temperature and
moisture, and the gradual decrease of the
pressure. Waves from the direction of the
southeast become bigger.
Landward Breeze
The landward breeze (Cro.: maestral, maestral,
smorac) is a daily, thermic wind blowing from the
direction of the northwest, and it occurs as the
consequence of the difference in the speed of
warming up of the land and the sea. It is present
from the spring to the autumn, and, during the
day, it often changes the direction of blowing.
The landward breeze is more present in the
southern Adriatic than in the northern Adriatic,
and it starts to blow earlier there.
Stiff Breeze
The stiff breeze (Cro.: burin) is a wind blowing
contrary to the landward breeze. It blows during
the night from the direction of the north,
north-east in the northern Adriatic, and in the
southern Adriatic, from the east or south-east. It
is the strongest before the dawn, and after that
it stops soon.
Data
About Weather
Weather forecasts are made by the State
Hydrometeorological Institute, and they can be
heard on VHF frequencies of coastal radio stations
and harbor master's offices. They are also
broadcast on FM stations or at the end of the news
or within broadcasts for seamen. Harbor master's
offices constantly send weather reports and
warnings on their VHF operating channels, in four
languages. It is possible to get forecasts with
the presentation of the synoptical situation in
all the marinas and harbor offices.
Nautical Radio Service and Communications Service
The whole of the Croatian coast is covered by
radio communications rather well. The radio
service for protection of human lives and safety
of navigation is provided by Plovput from Split,
through radio stations Split and Dubrovnik, which
cover the southern Adriatic, and Rijeka, which
covers the northern part of our sea. According to
the standards of the GMDSS system (Global Maritime
Distress and Safety System), the channel for
automated receipt of digitalized distress calls is
the channel 70, after which the communication is
transferred to the operating channel of the
coastal station, i.e. a harbor master's office (16
or 10). GMDSS system has been in use since 1 st
February 1999, and on the present VHF channel for
distress calls, the channel 16, constant listening
will be possible still for some more time. For a
direct call to a harbor master's office, the
channel 10 is used.
More about weather in Croatia
Web:
http://meteo.hr/index_en.php
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