For echo sounders, the distance actually traveled is two times the distance to the seafloor from the source. transducer (from the transmission source, to the bottom and back again). This results in a significant. source of signal loss for the system receiving the sound pulse, which must be compensated for at the.
Average Weather in Hilton Head Island South Carolina, United States. In Hilton Head Island, the summers are hot and oppressive, the winters are cold and windy, and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 42Â°F to 89Â°F and is rarely below 30Â°F or above 95Â°F.
Based on this score, the best times of year to visit Hilton Head Island for hot-weather activities are from mid May to early July and from mid August to early October, with a peak score in the second week of September.