Many other things might be declining or finished, but late summer and early fall are high season around here for many climbing annuals of tropical origins. The moonflowers (Ipomoea alba) do not really get going until July and are only now beginning to set flower buds, but regular morning glories (Ipomoea purpurea cv.), cypress vinea (Ipomoea quamoclit), and black-eyed Susan vine (Thunbergia alata) are already in full bloom.
Cypress vine (Ipomoea quamoclit), with its hard-to-capture shade of red
Common pink morning glories (Ipomoea purpurea cv.)
Black-eyed Susan vine (Thunbergia alata)
Maybe next year I should add some more such annual creepers - butterfly peas (Clitoria ternatea) would be lovely, though the seeds are hard to come by here, and I have also never tried cup-and-saucer vine (Cobaea scandens)...