Florida Keys • Upper and Middle Florida Keys
When do mangrove snapper bite in the Florida Keys?
Mangrove Snapper are open year round, in the backcountry as juveniles and on the reef line as adults, in 79-88 F water with the best bite between 86 and 87 F. These bands are drafted from published thermal preferences rather than measured in this water, and the daily FishIntel report says where that water sits this morning.
How does FishIntel forecast the best days to catch mangrove snapper?
FishIntel reads NOAA and satellite ocean data, including sea surface temperature breaks and chlorophyll edges, and turns changes near your zone into a plain-English mangrove snapper forecast. See a sample report at fishintel.ai/sample-report.
79-88°F
Best between 86-87°F.
Open year round. State waters 10 in total length and 5 per person, federal waters 12 in total length and 10 per person, both within the 10 snapper aggregate bag (FWC, read 2026-09-30). Much of this reef line lies outside the 3 mile Atlantic state line, so the rule changes on the run out. Regulations change, so check the current rules for the species you are targeting before treating a rating as a plan.
Confirm current rules before you keep a fish. Official rules: FWC, NOAA Fisheries.
These bands are NOT yet calibrated against observed water for Upper and Middle Florida Keys and come from published thermal preferences rather than a season of local observations.
A band and a season tell you whether mangrove snapper is on the cards this month. They do not tell you where the water is doing something today. A FishIntel report reads the actual sea surface temperature, chlorophyll fronts and current convergence over your own zone every morning, and says which of those edges is worth running to.
FishIntel was co-founded by Captain Kit Carson and Alan Lanham.