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. If you need it, there's quite a bit of additional data on these cities in various atlases in Suzallo or public libraries.
All times are local standard time.
Atmospheric refraction causes the Sun to appear slightly higher above the horizon than it really is. Thus the length of the day is a bit more than otherwise expected.