The country's port authority (AMP) expects 2008 to end with movement of over five million TEUs, in contrast to the 4 million TEUs handled in all of 2007.
Growth was fastest at Manzanillo International Terminal and Cristóbal port - administered by Panama Ports Company (PPC) - which saw their traffic increase 27.6 percent and 21 percent, respectively.
Meanwhile, traffic at Balboa port - also managed by PPC - rose 18.2 percent.
However, Colón Container Terminal saw an 18 percent drop in container movement in the comparison period.