Marathon Hump fishing forecast
Marathon Hump is a saltwater fishing spot in Florida Straits, United States. Anglers here target Blackfin Tuna, Mahi-Mahi, Wahoo. The most productive months are typically January, February, March, April, May, November, December.
Today’s verdict
Ranks #329 of 437 spots FishRadar scored worldwide today
Trending up — 4 points above this spot’s 7-day average
Score confidence ±4 points, from 8 live signals
The statistical model disagrees with the physics model here today — treat this score with extra caution.
Current conditions
| Sea surface temp | 31.3 °C |
|---|---|
| Wind | 11 km/h from S |
| Wave height | 0.2 m at 3 s |
| Current | 0.86 m/s toward NE |
| Pressure | 1016 hPa |
| Depth | 209 m |
| Cloud cover | 12% |
| Chlorophyll | 1.62 mg/m³ |
| Salinity | 36.7 PSU |
| Mixed-layer depth | 7 m |
| UV index | 0 |
| Wind sea | 0.0 m at 0 s |
| Ground swell | 0.1 m at 3 s from ESE |
| Current shear (surface vs 50 m) | 0.86 → 0.70 m/s |
The water here is 5.1 °C warmer than the September average of 26.2 °C. Warmer-than-normal water pushes cool-water species deeper and brings warm-water species in earlier than the calendar suggests. The water is mixed to about 67.3 m, so surface temperature carries well down the water column.
Updated 1 h ago.
What the score means at Marathon Hump
Marathon Hump currently scores 61 out of 100 (Good). Water temperature is 31.3 °C. 8 forecast signals are active in this score.
- Water temperature +25.0
- how close the water is to this species mix’s comfort band
- Chlorophyll +18.0
- plankton density — the base of the food chain
- Waves +9.0
- swell energy stirring the water column
- Wind +8.0
- surface chop, oxygen and bait drift
- Current +5.2
- moving water concentrates bait
- Pre-storm bite +3.5
- the classic feed before heavy weather
What’s biting now
The model expects today: blackfin-tuna, tarpon, permit, mahi-mahi, wahoo, blue-tang, stoplight-parrotfish, french-grunt
Bite windows
Best months for Marathon Hump:
Score history at this spot
30 days tracked at this exact location
Best recent day: 2026-08-23, 65/100
+5 points vs the same day last week
About this spot
Straits funnel strong tidal currents. Fish tend to feed around slack water and in the first hour of the flood or ebb, when bait is pushed through.
Approximate bottom depth: 209 m
Access & shore
Best reached by boat · offshore-only
What you can catch
-
Blackfin TunaThunnus atlanticus
-
Coryphaena hippurus
-
Acanthocybium solandri
Best months by species at Marathon Hump
| Blackfin TunaThunnus atlanticus | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mahi-MahiCoryphaena hippurus | ||||||||||||
| WahooAcanthocybium solandri |
Typical months; local seasons and closures apply.
Local regulations
Licensing:
- saltwater-recreational — residents Florida residents 16–64 must purchase a Saltwater Fishing License; $17/yr (short-term rates available)., non-residents Non-residents 16+: $17/3-day, $30/7-day, $47/annual.
- saltwater-recreational — residents Federal Recreational Fishing License may be required in addition to state license when fishing federal (EEZ) waters., non-residents Same as residents. Many states require their own license even in federal waters.
FishRadar regulations are summaries for informational purposes only. Always verify current rules at myfwc.com before fishing. Seasons and limits change annually.
Check Marathon Hump before you go
Live scores update through the day. Get the full forecast, bite windows, and your own saved spots in the FishRadar app.
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Nearby spots
Explore 10 more fishing spots within 360 km of Marathon Hump.
-
Florida Keys Reef
Florida Keys
Miami Offshore
Marco Island Florida
Fort Lauderdale Offshore
Dry Tortugas
Palm Beach Offshore
Lake Okeechobee Florida
Stuart Sailfish Alley
Sarasota Bay Gulf
Frequently asked questions
What fish can you catch at Marathon Hump?
Anglers at Marathon Hump target Blackfin Tuna, Mahi-Mahi and Wahoo.
When is the best time to fish Marathon Hump?
The most productive months at Marathon Hump are typically January, February, March, April, May, November, December.
What is the fishing forecast for Marathon Hump right now?
Marathon Hump currently scores 61 out of 100, based on live ocean and weather conditions — see the full breakdown on this page.
Can you fish Marathon Hump from shore?
Marathon Hump is best reached by boat; the scored water sits off a offshore-only.
Is the thermocline set up at Marathon Hump right now?
Not strongly right now — the water column is fairly mixed, so fish are less depth-locked.
How deep is the water at Marathon Hump?
The scored point sits over roughly 209 m of water. Depth shapes which species hold here and how the thermocline forms.
Fishing guides for this spot
- How to Catch Mahi-Mahi / Dorado: Chasing the Electric-Green Ghosts of the BluewaterHow to Catch Wahoo: Chasing the Ocean's Fastest SprinterHow to Read Tides for Fishing
Forecasts, not guarantees — check local rules before you fish.