Lake San Marcos is an un-incorporated area of San Diego North County which is now surrounded by the city of San Marcos. Lake San Marcos has as many as 347 sunny days a year, due in part to a stable high pressure system known as the “Pacific High” lying a few hundred miles West over the Pacific Ocean. This accounts for a range of about 20 degrees between the day´s high and the night´s low. The uninterrupted Pacific breezes provide nature´s air conditioning with temperatures seldom above 80 degrees. The Cerro de Las Posas Mountain on Lake property and the San Marcos Mountains to the North, with an eastern exit, create a wind tunnel preventing smog from settling in our valley. The few hot days a year are due to “Santa Ana” winds from the desert coming our way from the North. Lake San Marcos has a population of over 4400. Althought not an official senior community, there are many one story homes.
The newest area in Lake San Marcos is Varadero homes, a gated community on the highest area in Lake San Marcos. Some Varadero homes have views of the lake and the ocean.