conditions in the Adriatic are affected by the general weather
situation in the Mediterranean and local climate conditions.
Generally speaking, light to moderate winds with few storms
prevail until June.
In July and August, a period of calm sets in and storms are
more frequent. From September on winds are again stronger.
The bura (bora) and the jugo-siroco (jugo-scirocco)
are the main winds on the Adriatic. They prevail in the winter
period from September to May. The prevailing wind in the summer
is the maestral.
The bora is a cold and dry north-easterly wind. It blows from
the continent, i.e. from the eastern side of the Adriatic towards
the open sea and brings bright weather. It starts abruptly and
blows in squalls toward the sea. It is strongest in the Velebit
Channel and the Gulf of Trieste. Picture shows typical "bura"
corridors: (1) Golf of Trieste, (2) Kvarner, (3) Velebit Channel,
(4) Sibenik, (5) Split - Makarska, (6) Peljesac and (7) Dubrovnik.
In the summer the bora blows as a local wind and then lasts
only a few days. In the winter it may continue for six to fourteen
The jugo is a warm, humid east-southeast
wind. It is accompanied by heavy clouds and rain. It is not
a sudden wind like the bora but takes 36-38 hours to develop.
It blows throughout the Adriatic. In the summer it may appear
as a local wind and is more frequent in the southern part of
the Adriatic. Between March and June it blows in the north as
The maestral is a local wind which blows from the sea, mostly
in the summer. It usually starts between 10 and 11 in the morning
and reaches its greatest strength between 2 and 3 in the afternoon
to die down at sunset. It brings good weather. It is usually
accompanied by white clouds.
a north-easterly, blows in the summer from the mainland. The tramontana is a type of bora;
it is a northerly.
Another type of bora is the easterly
levante. Pulenat blows from west and lebic
from south-west. The nevera, a violent westerly,
comes as a storm or squall. In the summer months, storms in
the Adriatic are sudden and violent and produce a short-lasting
swell. The Adriatic storms have an advantage: they do not last
long and some of them leave behind pleasantly cool air.
During periods of high pressure, the Adriatic also has the classical
rhythm of winds: winds from the land during the night and from
the sea during the day.
The coastal radio stations broadcast weather
reports in Croatian and English several times a day. The reports
include a general weather situation report, messages and the
forecast for the following 24 hours.
Weather reports are broadcast at the following times
(in UTC; UTC + 1 h = CET; CET + 1 h = CE summer time):
Rijeka Radio VHF Channel 24 - 05.35 14.35 19.35
Split Radio VHF Channels 21, 23, 07, 28 - 05.45 12.45 19.45
Dubrovnik Radio VHF Channels 04, 07 - 06.25 13.20 21.20