high season: June to August
low season: November to January
shoulder season: February to May, September to October
Weather InformationSan Diego experiences an average daily temperature of 70 degrees, with low humidity, even during the summer months. Winters bring slightly cooler weather, but temperatures rarely fall below 40 degrees. Rain averages less than 10 inches and falls primarily between December and March.
Crowd InformationSan Diego celebrates many festivals throughout the year that attract large crowds to events such as Mardi Gras in the Gaslamp Quarter in February; The Rock 'n' Roll Marathon in June; the San Diego LGBT Pride Parade, Rally, and Festival in July; Fleet Week in August, September and October; and the San Diego Thanksgiving Dixieland Jazz Festival in November. Labor Day, Memorial Day, and Independence Day are also very busy for leisure travel, especially for vacationers who drive to the city.
Closure InformationHotels, restaurants, and attractions remain open throughout the year. However, certain businesses, such as Legoland California, may reduce hours of operation during the winter months. Some museums may close for major holidays such as New Year's Day, Thanksgiving, and Christmas.
When to SavePrices are generally lower from November through January when leisure and convention visitation drops. Visitation picks up in February when demand begins to rise with the return of conventions. Fourth of July, Labor Day, and Memorial Day may also see a surge in prices and visitation.
When to BookFor airfare, flexible travel plans may make it possible to take advantage of low last-minute fares. However, those with a set schedule should book at least three weeks in advance to obtain lower prices and ensure availability, especially for travel during the high season of June through August. For hotels, last-minute lodging can typically be found, but it's a good idea to book at least one month in advance. Book at least three months in advance for visitation during the high season or during popular events to ensure availability.
Information provided by the San Diego Convention & Visitors Bureau