From January to April a total of 831,593 visitors were registered, which means a difference of 34,893 additional travelers, or a 4.4% increase, over the same period last year.
An estimated $847.7 million dollars were injected into the Panamanian economy during this period.
Figures from the Comptroller General's Office also reveal that a typical tourist stays for eight days in the country and spends $127 dollars daily.
South America is the region that contributed the most tourists to Panama, with 239,216 visitors between January and April.
The arrival of visitors from Chile and Peru increased by more than 20% in that period.
Meanwhile, tourism by North Americans fell into negative territory, as U.S. visitor arrivals dropped by 1% in the first quarter of 2013 and that of Canadians plummeted 18.2%, mainly due to less charter flights.
Preliminary results from May indicate that hotel occupancy levels reached 63%.
Five international conferences were held in that month, and just three of them attracted 12,000 participants to the capital city.