The sea temperature in the Big Bend varies from a mid winter low of about 55 degrees to a late summer high of about 88 degrees, thus temperatures are suitable at any time of the year for one or more species of fish to be biting both inshore and offshore. Offshore springs and the discharge from many spring-fed rivers may further moderate the winter temperatures in local areas, creating concentrations of fish. Winter mornings can be cold enough to require a coat, hat and gloves, but by afternoon it usually warms up into the 60s. Mid day temperatures during summer can be brutal. Heat exhaustion is always a risk and anglers should fish from boats having some sort of shade such as a T-top or a bimini.
Sunburn is a hazard at any time of year, and liberal use of sun screen is always recommended.