Re: Galveston in November?
Try "the lagoon" at east of island. Can be some great red fishing there. However caution about stingrays. Anywhere on Texas coast where there are gamefish so shall there be sting rays.
Galveston State Park can be outstanding at times for reds, trout and flounders.
Even in November rattlesnakes can also be active so careful where you step. Bring lots of insect repellent as the Mosquitos can at times bite through waders (not really).
Water is seldom real clear so for me bigger and brighter seems to get better results. However if fish aren't there is really doesn't matter. Also no need for light tippets, 15#is light enough.
If your schedule allows fish the rising or falling tides. For me high or low tides are seldom productive.