There isn't truly a peak travel season because Cancun is congested all year round. Although spring and fall breaks are preferred by students, summer breaks are more popular. The greatest time to go for fishing trips in Cancun might be closer to the end of the fall and into the winter if you want to stay away from some of the crowds. Because of the tropical atmosphere and warm seas, the fish action lasts well into the winter.
https://sharedfishingcancun.com/