Single-zone SST guide

Blackfin Tuna water temperature at Florida Middle Grounds & Tampa Offshore.

  • Thunnus atlanticus
  • Tuna
  • August: absent

Typical August SST in Florida Middle Grounds & Tampa Offshore is 82–86°F. Blackfin Tuna prefer 68–82°F with peak activity in 72–80°F.

SST threshold

Blackfin Tuna threshold gauge.

50°55°60°65°70°75°80°85°90°Peak 72–80°
Outside toleranceSuboptimalGoodPeak·Dashed line = hard threshold

Year-round overlap

Florida Middle Grounds & Tampa Offshore SST × Blackfin Tuna range.

Where Florida Middle Grounds & Tampa Offshore typical monthly SST overlaps with blackfin tuna's preferred and optimal ranges, the species is in range.

Best months

April, May, October, November

MonthZone SSTStatus
Jan60–68°FOutside
Feb60–66°FOutside
Mar62–70°FFishable
Apr70–76°FPeak
May74–80°FPeak
Jun80–84°FFishable
Jul82–86°FOutside
Augnow82–86°FOutside
Sep80–84°FFishable
Oct74–80°FPeak
Nov68–76°FPeak
Dec62–70°FFishable

Best months

April, May, October, November

Chunk bait at offshore reefs, rigs, and the Gulf Stream edge. Vertical jigging is highly effective. Sunrise and sunset bites are strongest.

Verify with current SST imagery

These ranges are climatological norms. Actual SST varies year over year — get an SST satellite shot the day before you run.

Live SST imagery for Florida Middle Grounds & Tampa Offshore.

Bield: Fish overlays current NOAA CoastWatch SST onto your chartplotter view and alerts you when Florida Middle Grounds & Tampa Offshore hits blackfin tuna's optimal 72–80°F window.

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