With summer just days away, Portugal is marking its national day in sweltering heat, with 35–40 °C prompting many to seek relief in the cold Atlantic.

With summer just days away, Portugal is marking its national day in sweltering heat, with 35–40 °C prompting many to seek relief in the cold Atlantic.

With summer just days away, Portugal is marking its national day in sweltering heat, with 35–40 °C prompting many to seek relief in the cold Atlantic.