The colony of Surfside is located adjacent to the Pacific Ocean beach. It is said that no home in the colony is more than from the sand. Also visible from Surfside is a portion of Anaheim Bay, which is across Pacific Coast Highway and connects to Huntington Harbour. The climate of Surfside is moderate with temperatures often hovering around . The record high for this area has been reported at , with the record low at . It is not unusual to have cool evenings with temperatures in the 50s during the summer and the low 40s in winter. There is often a brisk wind at Surfside, making it a favorite spot for kite surfers. Over the years, the winter surf has sometimes been severe, destroying homes in the colony. Especially severe storms and high tides wreaked havoc in 1952 and 1953, and again in 1963. Into the 1970s and 1980s,
erosion posed problems for the community. Rock barriers, sand bags, and temporary berms have all been used to safeguard homes. In 1983, high tides flooded many of the residences in Surfside. ==Demographics and housing==