Don't know what kind of fishing you want to do, but Mr. Luz Guerrero taught three of my brothers how to fish the reef. You can reach him through his daughter's email firstname.lastname@example.org.
I love his shore lunch. In the AM we fish and snorkel up north near Mexico Rocks, then stop on the beach for lunch - Snapper Bar-B-Qued Belizean style!!
I've seen Sun with some rain in November.
Don't remember bugs being awful then!