The non-astronomical considerations are also germane. Mention three issues which you considered. There are many challenges in identifying the best place to suntan. So before you proceed much further think carefully about what they are. Consider the relevance of such things as the duration of daylight, the height of the Sun, etc.
Weather is another issue.
And don't forget about skin cancer. Finally, if you select a very remote beach, keep in mind that you'll have to squander a lot of time getting to and from it by helicopter. To make your job a lot easier, here are some average temperatures for cities along the west coast of the Americas at various latitudes. Add 30 degrees for the temperatures at sea level at this latitude. Below, you'll find a table with some useful astronomical data for these same cities.