Lisbon in August: Sunsets and Local Festivities

Lisbon is set to welcome Festas do Mar from 28 August to 7 September 2025 in Cascais, just a 40-minute train ride from the city centre. For ten days, the bay will come alive with free open-air concerts by some of the country’s biggest artists, colourful fireworks over the Atlantic, traditional boat processions honouring Nossa Senhora dos Navegantes, artisan markets and freshly grilled seafood served just steps from the water.

Perfectly timed for late-summer travellers, the festivities pair beautifully with Lisbon’s world-famous sunsets, which are at their most captivating during the warmer months. As the heat of the day fades, the skies melt into pink, orange and lilac, casting a golden glow over the River Tagus and the Atlantic coast.