I am brand new to the forum and have started a container garden. My question is, will my plants get enough sunlight on my porch? It is screened in with a mostly opaque roof although there is a small section that is translucent. My porch faces the west and my weather gets very hot and humid as I live in the south. Thank you for any advice you can give.

I'm thinking the amount of sun you get would depend on the type of screening. I live in the South, and I've lived at a house with a large screened in porch which faced South. I had enough bright light to be able to grow a variety of plants. If you don't have much light, you can always do houseplants. Most can tolerate indirect light, and a lot shade.
With a porch that faces West, I can't help but think you would get some direct sun. Hot and humid is ok for many plants. What kind of plants did you have in mind? That determines what to put out there.

I would like to grow some vegetables including tomatoes, bell peppers, and lettuce.

The lettuce will do well with afternoon shade. Tomatoes and peppers need at least 6 to 8 hours direct sun to produce fruit. Tomatoes and peppers also require large containers, and if you're growing indeterminate tomatoes these will get quite tall and will need to be staked. If you have sufficient sunlight, determinate or patio tomato varieties would be a better choice for a porch.
In the South lettuce is an early spring/ late fall crop. It may be too late to plant lettuce for a spring crop. Lettuce bolts ( sets seed ) in hot weather which turns it bitter. I don't know what your zone is, but I'm in zone 7b, and I planted my lettuce March 5th. I'm harvesting now, and it should last until about mid May. There are bolt resistant varieties, check the packages for this. Lettuce is easy to grow from seed.

The beauty of lettuce in a container is you can set it in a shelving unit indoors or on kitchen counter when too hot or cold outdoors. This one has been going indoors since dead of winter with a single household Philips daylight 100W equivalent (15W) light bulb in a cheap clip on brooder clamp light fixture. I too am a newbie but lettuce is growing like a weed.

I am curious, would you need to keep a couple friendly bees or manually pollinate tomatoes and peppers yourself, with a screened in porch, or do they pollinate each other just with the breeze?

That lettuce is looking good! That's a great set up! No, tomatoes and peppers don't need bees for pollination. The wind does it.

Dree5258 said:I would like to grow some vegetables including tomatoes, bell peppers, and lettuce.

I can advise you a site about growing plants, namely vegetables

I grew my garden in 5 gallon pots on apartment balconies for years. It is possible. It takes work though. I put reflective surfaces behind them to provide more sunlight. I gave them more fertilizer. I used the best potting soil I could manage. You will cherish every ripe fruit...

Being Spring plants, the stormy weather of Spring kicks tomatoes and peppers into blooming. If you don't get the Spring rains and winds, our grandmother's would take an old dish rag and lightly beat the plant. Blooms would be seen the next day. I just shake mine a bit and my maters are producing great.

I have plants in porch. So far they are doing well. Depending on the sunlight I decide which plants should I place where in the covered porch. I have all rose plants and perennials in
the covered porch.

Whereas, In the open balcony I have all seasonal vegetables which needs daily bright sunlight all day.