I am in zone 5 so I can't give you any specific suggestions for plantings, but thought it might be helpful if I gave you an idea of some of the kinds of plants I use on the west side of my home with its morning shade and afternoon sun. It can be tricky - especially in your heat! Trial and error may be necessary. My west facing garden is along a wall of my house. On the south end of my west facing wall I use sun plants. I have a large climbing rose and a clematis growing together, a few small daylilies, one large catmint, some yellow variegated sedums, chocolate eupatorium, a shrub rose, and for later color, a mixed stand of helenium, monarda, black-eyed susans, and Purple Dome asters. The middle section of this west bed is narrower and also gets less sun. On the wall there are 3 vines on 3 spaced trellises. The one towards the south has a clematis, the middle a porcelain vine (grown for variegated foliage and fall berries, the third vine at the north end (the name of which I have forgetten) is for vertical folliage only. These are fronted by orienpet and oriental lilies, which are themselves fronted by some shortish asters that will grow anywhere, and a patch of some yellow self-seeded (culled by me for this bed) echinaceas, cardinal flowers, more BESusan that will grow anywhere, and another patch of Purple Dome aster. All of these grow well in part sun/part shade. As you move to the north end of this west facing bed into more shade (from the folliage vine on) there are Black Beauty lilies that will bloom well in quite a lot of shade and some shorter asiatic lillies that don't mind some shade and get replaced off and on if they do thin out, some of the so-called "ditch" daylilies (tall orange flowered ones that spread - called many names depending on location) that again grow most anywhere here. There are also some gold spiderworts, one variegated sedge that grows best in part shade, and some clumps of an old yellow daylily that I've had forever, another large catmint (flops a bit here but grows big and fast) and some more Purple Dome aster and the ever invading BESusans. This bed then bleeds into a North facing bed with a collection of specialty hostas. As you can probably tell by the plant choices, this is a hot color bed and it is mostly the bright bold scheme of clear yellow and both bright and dark red shades, with cooling patches of blue, that hold the bed together, across the varying conditions of sun and shade, although any carefully controlled color scheme would work (a focal point of sorts, in this case the trellis structures helps, along with foliage variety). BTW the bed also varies greatly in moisture levels being wetter towards the north, except for one area at the south that my neighbor's sprinklers hit. I had to move the shrub rose twice trying to avoid this overhead overdone watering. Good luck and have fun.

In the pink to reddish range I have Ville de Lyon, Gravetye Beauty and another texensis hybrid, perhaps Princes Diana, that grow all in eastern exposures along a building and so only get morning sun. These all have type 3 pruning (see FAQs for pruning directions.) I have a white Guernsey Cream that gets only a few hours of sun around late morning to early afternoon, so would probably do well as in your setting. This is type 2 pruner. I don't grow Sweet Autumn clematis (white) or any of the yellow species type (C. tangutica) since I live on an old farm, and both of these have a bit of a reputation for spreading via seed. I have enough invasives without adding to the problem. I don't know if they would be a problem in your area.

I am in SW WA and have a similar problem. We're on a hill and have woods around us, except the SW exposure of the house. It gets 3-4 hours of hot afternoon sun. We have white stone siding and the whole area gets exceedingly warm. Many things I've tried there wilt in the pm, and/or just don't do well. The best perennial I've found is something that was tagged "Texas Sage" and it's one of those greggii sages. Loves it there. One cultivar, Hot Lips, is really happy - I bought a whole mess of them. Another plant that does well, surprisingly, is fleabane. It's low growing habit probably keeps it cool. And of course, there's always Walker's Low Nepeta. I know these aren't climbing, but they might help someone. I myself am heading out first thing tomorrow for some clematis and some of Zoomermom's suggestions.

Your county extension office can test your soil for you. You can either find them on your county's website, or if you're a technophobe or just can't find the dang folk, call your library and they will be able to get you in touch with them. There are a lot of really nice morning plants. How big would you like them to get? Loropetalum is a great shrub; it's purple leaved, semi-evergreen, touch and flowers bright pink. There are several varieties available that get different sizes. Gardenias, camelias and azaleas are all nice plants but they require special site preparation and fertilizers. There are some nice hollies out there, some with berries that feed the birds. I saw a great-looking variegated holly at Calloway's the other day. If you want stuff that stays low, say under a window, part-sun perennials can work too. Crinums, ginger, balloon flower, columbine, elephant ears for a tropical look ... Lots of really great options! I would get your soil tested, think about how much you're willing to do in terms of site preparation and care (fertilizers and water), what size plants you need, whether you want to deal with pruning, and maybe what kind of colors you're going for.