System and method for controlling speed of a marine vessel

A system for a marine vessel, the system comprising:

• a controller in signal communication with a marine propulsion device and controlling operation of the marine propulsion device to produce thrust to propel the marine vessel at a vessel speed;
• a user interface configured to receive user inputs and in signal communication with the controller;
• a first sensor for determining the vessel speed and in signal communication with the controller;
• a second sensor for determining a non-speed condition of the marine vessel and in signal communication with the controller;
• wherein, in response to a given user input from the user interface, the controller is configured to control operation of the marine propulsion device based on feedback from the first sensor to prevent the vessel speed from exceeding a maximum speed limit;
• and
• wherein the controller is configured to reduce the maximum speed limit in response to determining that the non-speed condition of the marine vessel meets a predetermined criterion.