Resort Harbour Properties is located at Sanibel Harbour in Fort Myers, just across the causeway from Sanibel Island. This area of Southwest Florida is a subtropical zone featuring humid summers and warm winters. During the summer the average daily temperature 90 F (32 C). During the winter months the average temperature is an ideal 75 F (24 C). The heaviest rainfall takes place over the summer months between June and September. Check the Sanibel weather forecast to help plan your vacation.