The weather forecast for La Jolla, CA is much like the rest of San Diego – sun, sun, and more sun, with the occasional chance of clouds! La Jolla benefits from a mild Mediterranean climate that is temperate and generally quite warm throughout the year. The average high temperature stays between the mid-60s and high 70s, with occasional spikes during some months. August and September are usually the warmest.
The summer months are usually very dry with little to no rainfall.
The ocean temperature warms up during the summer months, reaching 68 or 69 degrees Fahrenheit. Most swimmers or snorkelers prefer to wear wetsuits year-round.
When is the best time to visit La Jolla? Typically, July through October are the most temperate, with average temperatures remaining in the 70s. There are fewer morning clouds and less fog during these months, and the days are much longer. These are perfect months for activities like hiking, biking, and going to the beach in La Jolla.
August is San Diego's driest month. Most years, San Diego has no rain in August. Just one in every four years receives 0.01 inches (0.3 mm) or more precipitation.