Single-zone SST guide

Bigeye Tuna water temperature at Baltimore & Wilmington Canyons.

  • Thunnus obesus
  • Tuna
  • August: fair

Typical August SST in Baltimore & Wilmington Canyons is 72–82°F. Bigeye Tuna prefer 50–75°F with peak activity in 59–72°F.

SST threshold

Bigeye Tuna threshold gauge.

50°55°60°65°70°75°80°85°90°Peak 59–72°
Outside toleranceSuboptimalGoodPeak·Dashed line = hard threshold

Year-round overlap

Baltimore & Wilmington Canyons SST × Bigeye Tuna range.

Where Baltimore & Wilmington Canyons typical monthly SST overlaps with bigeye tuna's preferred and optimal ranges, the species is in range.

Best months

May, June, July, September, October, November

MonthZone SSTStatus
Jan46–54°FFishable
Feb46–54°FFishable
Mar48–56°FFishable
Apr50–60°FFishable
May56–66°FPeak
Jun64–74°FPeak
Jul70–80°FPeak
Augnow72–82°FFishable
Sep68–76°FPeak
Oct60–68°FPeak
Nov54–62°FPeak
Dec48–56°FFishable

Best months

May, June, September, October

Bigeye fishing is canyon-edge fishing at depth. Troll deep-running plugs along the 100-fathom line at sunrise and sunset. SST charts help identify which canyons are eddy-influenced; use bathymetry to find the structure.

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 Baltimore & Wilmington Canyons.

Bield: Fish overlays current NOAA CoastWatch SST onto your chartplotter view and alerts you when Baltimore & Wilmington Canyons hits bigeye tuna's optimal 59–72°F window.

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