week of Sep 28 · SST 85°F
Florida Keys — this week
SST 85°F · Bonefish, Crevalle Jack, Permit prime. Live MUR satellite water temperatures (change is vs. seven days ago). Tap any spot on the chart with Fish mode on for a point-by-point breakdown.
Water temperature — south to north
| Spot | Now | Week Δ |
|---|---|---|
| Key West | 85°F | -1.8°F |
| Marathon | 85°F | -1.3°F |
| Islamorada | 85°F | -0.5°F |
Migration line — weekly movement
| Species | Prime water reach | Trend |
|---|---|---|
| Mahi-Mahi | prime water reaches Islamorada | steady |
| Wahoo | prime water reaches Islamorada | steady |
The northernmost sampled spot whose water sits in the species' habitable band, now vs. a week ago. Fish follow temperature — this is the leading edge, not a sighting report.
In season now — temperature fit
| Species | Fit | Prime | Measured at | Technique |
|---|---|---|---|---|
| Bonefish | 100 | 75–88°F | surface | Shrimp or small crab flies led ahead of tailing fish on incoming flats. |
| Crevalle Jack | 100 | 70–86°F | surface | Throw a big topwater into a busting school and hold on — pound for pound the hardest pull inshore. |
| Permit | 100 | 75–88°F | surface | Live crabs sight-cast on flats; over wrecks in summer. |
| Common Snook | 100 | 73–88°F | surface | Live bait or swimbaits on mangrove edges, dock lights and pass current seams. |
| Great Barracuda | 100 | 73–86°F | surface | A fast tube lure ripped across the flat or the wreck — they will not chase anything slow. |
| Mahi-Mahi | 100 | 75–86°F | surface | Run and gun to weedlines, boards and birds; pitch ballyhoo or jigs. |
| African Pompano | 100 | 72–84°F | seabed | Live bait or jigs deep over wrecks and reef ledges; they hang in small groups on the up-current side. |
| Almaco Jack | 100 | 66–82°F | seabed | Vertical jigs over deep rigs and wrecks — usually higher in the column than the amberjacks. |
| Atlantic Spadefish | 100 | 68–84°F | seabed | Small jellyball or clam bits on light tackle right against a wreck, tower or buoy chain. |
| Black Grouper | 100 | 68–82°F | seabed | Big live bait pulled hard off the ledge — give them line and they are back in the rock. |
| Goliath Grouper | 100 | 70–86°F | seabed | Catch and release only — heavy tackle over wrecks and bridge pilings, and get them back down fast. |
| Gray Triggerfish | 100 | 64–82°F | seabed | Small strong hooks tight to the structure — they bite short and shred a bait off a big hook. |
| Greater Amberjack | 100 | 68–82°F | seabed | Live bait or big vertical jigs straight over deep wrecks and towers. |
| Hogfish | 100 | 70–82°F | seabed | Live shrimp on light tackle over hard bottom — mostly a spearfishing prize, fussy on rod and reel. |
Named grounds in Florida Keys
The Islamorada Hump
Blackfin Tuna · Greater Amberjack · Atlantic Bonito
Marathon (West) Hump
Blackfin Tuna · Sailfish · Mahi-Mahi
Key West / The Wall
Sailfish · Mahi-Mahi · Blackfin Tuna
Dry Tortugas
Mangrove Snapper · Red Grouper · Permit
Method: habitat-envelope scoring against live NOAA MUR SST at the sampled spots; season windows and envelopes hand-curated from NOAA Fisheries profiles. No catch hearsay — when it says a species fits, it means the water does.
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