San Francisco: Beach
You would think that a city right on the Pacific would make a great beach holiday; however San Francisco is an exception. The weather here is often chilly and foggy, especially during the summer months, so San Francisco is not ideally for a beach holiday. That said, there are some nice beaches in San Francisco but these are best for long walks, surfing or watching the sunset. You will be lucky if the beaches in San Francisco are warm enough for sunbathing.
If you are looking for sunshine and warm weather you are better off heading south of San Francisco to Santa Cruz or even further down the coast. These towns are just a few hours drive from the city and would be a good option if you want to combine a beach holiday with a visit to San Francisco. There are also some great beaches just outside San Francisco such as Stinson Beach, Half Moon Bay or Point Reyes, which make a great day trip if you have a car.