Ruta del Padre Sarmiento traces the Rías Baixas coastline through beaches and vineyards before turning inland to Padrón and Santiago. Conditions are generally most settled in May, June, and September, with long daylight, moderate temperatures, and fewer prolonged wet spells along the way. Expect Atlantic patterns: sea breezes and morning mist on exposed capes, changeable skies with passing showers, warmer inland air near the finish, and occasionally slick surfaces after rain.