Gargathy Beach gets a typical amount of annual precipitation. The month of March is the wettest with most of the rain, and April is the month with the least moisture. Through the warm days of summer at Gargathy Beach temperatures are usually in the 80's. Summer night lows sink down to the 70's. The wintertime brings highs down to the 40's while Gargathy Beach nighttime low temperatures through the winter are in the 20's.