Florida Keys · ChartNav curated ground

Dry Tortugas

Remote reefs and channels west of Key West — snapper and grouper on the bottom, permit and tarpon on the flats.

SST 85°F · charted 6 ft · NOAA-designated EFH here
NOAA ENC + BlueTopo seafloor relief — the same layers as pressing Fish in the app. Toggle layers above; tap the map to pan.
Open on the live nautical chart →

What's biting here — right now

Prime water for Great Barracuda & Mangrove Snapper — 85°F on top, slack now, moving 8:47 PM–11:17 PM.
Today's bite
live from the tidal stream below
Days ahead
Today OK wind 15 kt Sun OK wind 15 kt Mon GO 10 kt Tue GO 7 kt Wed GO 7 kt
8:47 PM – 11:17 PM
0.3 kts at 10:17 PM
Great Barracuda identification illustration
In season (Oct)
SST 85°F in the prime band (73–86°F prime)
Charted 22 ft suits this species (10–164 ft ideal)
Better near wrecks and reef edges if you can find it
A fast tube lure ripped across the flat or the wreck — they will not chase anything slow.
Mangrove Snapper identification illustration
In season (Oct)
Bottom temp 86°F at 33 ft in the prime band (72–86°F prime)
Charted 22 ft suits this species (10–131 ft ideal)
In NOAA-designated Essential Fish Habitat — expected here even where structure isn't charted
Light fluorocarbon and small live baits around any structure; chum heavily.
Permit identification illustration
In season (Oct)
SST 85°F in the prime band (75–88°F prime)
Charted 22 ft suits this species (2–20 ft ideal)
Better near structure or edges if you can find it
Live crabs sight-cast on flats; over wrecks in summer.
Goliath Grouper identification illustration
In season (Oct)
Bottom temp 86°F at 33 ft in the prime band (70–86°F prime)
Charted 22 ft suits this species (20–148 ft ideal)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Catch and release only — heavy tackle over wrecks and bridge pilings, and get them back down fast.
Cero Mackerel identification illustration
In season (Oct)
SST 85°F workable (73–84°F prime)
Charted 22 ft suits this species (20–164 ft ideal)
Live pilchards on light wire over the reef edge — the reef-line mackerel the kings run past.
Tripletail identification illustration
In season (Oct)
SST 85°F in the prime band (73–86°F prime)
Charted 22 ft suits this species (7–49 ft ideal)
Near the southern edge of its range (regular south to about 25.0°N)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Sight-cast live shrimp to fish laid up under floats and markers.
Crevalle Jack identification illustration
In season (Oct)
SST 85°F in the prime band (70–86°F prime)
Charted 22 ft suits this species (7–131 ft ideal)
Near the southern edge of its range (regular south to about 25.0°N)
Throw a big topwater into a busting school and hold on — pound for pound the hardest pull inshore.
Blacktip Shark identification illustration
In season (Oct)
SST 85°F in the prime band (72–86°F prime)
Charted 22 ft suits this species (10–197 ft ideal)
Near the southern edge of its range (regular south to about 25.0°N)
No strong temperature break nearby
Cut bait in a slick off the beach or the bar — the one that jumps and spins when it eats.
Florida Pompano identification illustration
In season (Oct)
SST 85°F workable (68–84°F prime)
Charted 22 ft suits this species (2–26 ft ideal)
Near the southern edge of its range (regular south to about 25.0°N)
Sand fleas on a pompano rig in the surf trough — they follow the wash on a moving tide.
Common Snook identification illustration
In season (Oct)
SST 85°F in the prime band (73–88°F prime)
Charted 22 ft suits this species (2–20 ft ideal)
Near the southern edge of its range (regular south to about 25.0°N)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Live bait or swimbaits on mangrove edges, dock lights and pass current seams.
Yellowtail Snapper identification illustration
In season (Oct)
Bottom temp 86°F at 33 ft workable (72–84°F prime)
Charted 22 ft suits this species (26–197 ft ideal)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Long fluorocarbon leader drifted well back in a chum slick — heavy gear and they simply will not eat.
Lane Snapper identification illustration
In season (Oct)
Bottom temp 86°F at 33 ft workable (72–84°F prime)
Charted 22 ft marginal for this species (26–197 ft ideal)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Small baits on light bottom rigs over any hard patch — the reliable filler on a reef trip.
Live habitat-envelope scoring at this exact cell — SST, charted depth, charted structure and seabed, NOAA-designated habitat. The same engine and cards as tapping the spot in Fish mode.

Today's bite windows — moving water

Slack water right now
8:47 PM – 11:17 PM
0.3 kts · 10:17 PM
2:17 AM – 3:47 AM
0.2 kts · 3:17 AM
7:47 AM – 11:17 AM
0.5 kts · 9:47 AM
Tidal stream at Southwest Channel (1.1 nm away), peak today 0.5 kt — same arrows and curve as the current stations on the main chart. Shaded spans of the curve are the windows. Moving water concentrates bait and turns fish on; slack is the lull. Timing only — it never changes the habitat scores above.

The week ahead — full forecast

Drag the graph for any hour — wind, gusts, seas & period, rain, predicted current. The pale band around the wind line is model disagreement; the day chips carry the verdict and the number that caused it; the moons are real phases.
Sea state right now — every train
Combined
2.4 ft @ 5 s
from SE
Wind sea
2.4 ft @ 5 s
from ESE
Swell 1
0.6 ft @ 6 s
from SW
Swell 2
0.0 ft
Swell 3
0.0 ft
Wind: NBM 2.5km direct (69 h) → GFS 0.25° direct (3 h) → Open-Meteo blend (96 h) · Waves: GFS-Wave 0.16° (12Z cycle), full train decomposition · Confidence band: GEFS ensemble spread · Bite windows: CO-OPS tidal predictions

Water temperature — last 10 weeks

2026-07-24 → 2026-10-02 · 85–90°F

Best months here

J
F
M
A
M
J
J
A
S
O
N
D
Species in season by month for Florida Keys (from the knowledge base). In season now: Bonefish, Crevalle Jack, Florida Pompano, Permit, Red Drum (Redfish), Common Snook, Blackfin Tuna, Cero Mackerel, Great Barracuda, Mahi-Mahi.
Other grounds in Florida Keys
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