Wind is the movement of an air mass created by the pressure difference between two adjacent areas, moving from a high-pressure area (an anticyclone) to a low-pressure area (a storm or depression). Numerous Mediterranean winds blow across the Iberian Peninsula, each with its own unique characteristics.
In this article we are going to tell you everything you need to know about the Mediterranean winds, their characteristics and types.
Mediterranean winds
We've said that wind is the movement of an air mass created by the pressure difference between two adjacent areas. This movement is theoretically linear and is affected by the Earth's rotation, known as the Coriolis effect. This means that in the Northern Hemisphere, the wind moves isobars at an angle of approximately 25° to 30° with respect to the Earth : inward in a storm, outward in an anticyclone. Furthermore, the effects of winds in the Mediterranean can be interesting and varied at different times.
Types of Mediterranean winds
Tramontana: North
This means it originates in the mountains and is characteristic of the Catalan coast and the northern Balearic Islands. Furthermore, the main mountain range in Mallorca is called Tramuntana. This is a northerly wind that can last for days with very strong gusts.
It descends from the northern Pyrenees and crosses the southwestern part of the Massif Central, where it accelerates towards northern Catalonia and the Balearic Islands. At Cap de Creus, wind gusts can exceed 40 knots (75 km/h). To better understand how this wind relates to others in the region, you can read more about the winds of Spain.
Gregal: Northeast
It's a wind that seems to be an evolution of the Tramontana or the Levante. It takes its name from the sailors of Catalonia and Aragon. This is the wind they use when traveling to Greece. It's usually dry air, and being from a continental area, it doesn't usually produce cloud cover or precipitation. It's a wind that doesn't exceed 20 knots and is characterized by its cold temperature.
Lift: East
This vision bears the name of the southeastern region of the Iberian Peninsula, but does not correspond to any territorial division or autonomous community. It is an easterly wind that occurs when there is an anticyclone in Germany or France.
Originating from the ocean, this air is rich in moisture and produces heavy rainfall under certain conditions. The Levante winds are one of the strangest and most dangerous weather phenomena in the Mediterranean. When they blow strongly with barometric pressure, they can inundate the coast, causing significant damage. The process by which these winds form can be similar to what happens at Cape Trafalgar . If you want to learn more about forecasting torrential rains, consult this article on torrential rain prevention in the Mediterranean.
Sirocco or Xaloc: Southeast
The Royal Spanish Academy (RAE) doesn't include it, but according to Wordreference, it's a dry, warm, southeasterly wind. Beyond the example of the Levante region, it's a clear illustration of how wind and its impact on daily life permeate culture in general. The Sirocco usually blows in autumn and spring, rarely exceeding 35 knots . It originates in the Sahara Desert, making it a warm, humid wind that brings very high temperatures, which can exceed 40 degrees Celsius.
Sometimes, this wind can carry fine sand or desert dust, filling the air with particles and reducing visibility. This phenomenon is also known as smog. For a better understanding of winds and their impact, you can review the article that explains the importance of winds and their effects on the climate.
Migjorn: south wind
Migjorn, or the midday wind as it's known, gets its name from reaching its maximum intensity when the sun is at its highest point. The phenomenon occurs when a storm in Portugal forms symmetrically with an anticyclone in Italy, producing southerly winds.
Since the wind comes from Africa, it blows hot and dry, causing the peninsula to heat up. It is often mixed with Siroco and GarbÃ, depending on the air mass or the topography of the coast.
Garbi: Southwest
This was the first wind I learned about when I started sailing dinghies. It's the type that usually blows in Barcelona in the afternoon, and it's from the southwest. But be careful, this wind is often confused with the warm southwest winds that occur along the Mediterranean coast.
Warm winds are created by temperature differences between land and ocean surfaces. Unlike the winds we discussed in this article, these are created by the movement of large volumes of air. The Garbà wind is actually created by a storm moving from west to east in the southern Mediterranean. If you're interested in learning more about the Mediterranean Sea and its relationship to winds, feel free to consult this information.
Garbà sometimes produces a mist that can be seen on the horizon looking south. In addition, these winds create depressions that cause storms and rain.
West: West
They are rare in the Mediterranean. They are west winds coming from land, so they cause warmer and drier temperatures. They are considered the best option for recreational navigation on the peninsular coasts as they offer sunny days without waves.
If we venture too far offshore, we'll need to be careful, as the sea can be rough beyond the coastal protection . Furthermore, returning upwind can be more difficult, especially for sailboats. This is why they create waves on the island.
Cierzo: Northwest
Also known as the Mistral or Mestral, it is a cold, dry, and violent wind. It blows from the northwest toward the Ebro River and the sea off Genoa. It is caused by the nighttime cooling of the ground in coastal areas and is intensified by the increase in pressure in northwestern Europe. Furthermore, its speed increases when it passes through mountain ranges (Pyrenees, Alps, etc.) and cuts through narrow valleys.
Mistral
A northwesterly wind is a strong, cold, and dry wind blowing from the northwest. It is usually a gust of wind that increases throughout the day and tends to weaken as night falls. If the temperature is much colder than the ocean temperature, the impact on the coast is magnified . It typically lasts from three to six days, often leaving behind a bright blue sky as the clouds are swept away.
Northwesterly winds can occur at any time of the year, but from the beginning of November to the end of April, the winds are at their strongest, easily reaching 50 knots, with gusts sometimes reaching 90 knots, and we will have a better chance of meeting with this in spring.
A northwesterly wind is a wind from the northwest created by the opposition of the Azores High and a storm moving northeast across Europe, forming a cold front that heads towards the Alps. The mountains trap the wind, cooling it and directing it towards the Rhône Valley, where its speed increases due to the tunnel effect, and it finally flows out to sea through the Bay of Lions. Winds blowing through the mountains also create a small low-pressure system over the Gulf of Genoa or the Tyrrhenian Sea. Northwesterly winds have battered the southern coast of France, creating rough sailing conditions in the Bay of Lions, sometimes extending as far as Menorca and Corsica.
I hope this information helps you learn more about the Mediterranean winds and their characteristics.