The summers in Port St. Joe are long and hot; the winters are short, cool, windy, and partly cloudy; and it is wet year round. Over the course of the year, the temperature typically varies from 47°F to 88°F and is rarely below 33°F or above 91°F. Based on the tourism score, the best times of year to visit Port Saint Joe for warm-weather activities are from early April to mid May and from early October to early November.