This website tells you which terraces in Barcelona are in the sun or shade

The website Terrasses.cat was created by radio journalist Josep Moragas and combines municipal information with the position of the sun and the height of buildings. The result is shown on a map using a simple code: yellow for sun, orange for sunrise or sunset light, and green for shade.

The platform can use the user's location to show the nearest terraces. You can also search by neighbourhood, street or establishment, and check how the conditions will change at other times or on other days—useful for planning a meal, a coffee or an outing when the heat is on.

Each terrace has its own page showing its hours of sun and shade, the authorised area, and the number of tables and chairs. It also shows whether it is on the pavement or on the road, information that helps you get an idea of the space before you arrive.

Users can add details that don't always appear in official records, such as the presence of awnings, and leave brief comments about their experience. The website also lets you save favourite terraces and find the best time to visit them.

Among the most searched establishments are Dublin Sport Tavern, in Sarrià-Sant Gervasi; La Isla y Topik, in the Eixample; La Nova Farga, in Sants; and Barcelona, in the Sants-Badal area. The list changes according to searches and shows which areas attract the most interest.

Moragas developed the tool without specialised IT training, relying on artificial intelligence systems to generate and adjust the code. The process shows how this kind of technology can be used to create simple urban services from public data.

The scene leaves mobiles open on tables and decisions made before leaving home. In a city where an hour of sun can completely change an outdoor meal, knowing where the shade falls becomes a small advantage for organising your day.