fast growing vine for protection from sun

Last spring we had a diseased ash tree removed from our boulevard, which has left our second floor, west-facing porch fully exposed to late afternoon sun. I'm wondering if you might recommend a fast growing annual vine that I could put in flower boxes or a container and train up a lattice to provide the leafy protection that we're sorely missing. The porch has a pergola-type structure which we can use to provide support for a climbing vine. Thanks for any suggestions you can provide! Lauren