Single-zone SST guide
Yellowfin Tuna water temperature at Block Island Canyon Complex.
- Thunnus albacares
- Tuna
- August: peak
Typical August SST in Block Island Canyon Complex is 68–78°F. Yellowfin Tuna prefer 65–86°F with peak activity in 72–79°F.
SST threshold
Yellowfin Tuna threshold gauge.
Year-round overlap
Block Island Canyon Complex SST × Yellowfin Tuna range.
Where Block Island Canyon Complex typical monthly SST overlaps with yellowfin tuna's preferred and optimal ranges, the species is in range.
Best months
July, August
| Month | Zone SST | Status |
|---|---|---|
| Jan | 42–48°F | Outside |
| Feb | 42–48°F | Outside |
| Mar | 44–50°F | Outside |
| Apr | 46–54°F | Outside |
| May | 52–60°F | Outside |
| Jun | 60–68°F | Fishable |
| Jul | 65–75°F | Peak |
| Augnow | 68–78°F | Peak |
| Sep | 64–72°F | Fishable |
| Oct | 56–64°F | Outside |
| Nov | 50–58°F | Outside |
| Dec | 44–52°F | Outside |
Best months
August
Find a warm core eddy or canyon edge with a 2–4°F break. Troll cedar plugs, ballyhoo, and Green Machines through the warm side. Chunk butterfish at canyon edges overnight on the temperature line.
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 Block Island Canyon Complex.
Bield: Fish overlays current NOAA CoastWatch SST onto your chartplotter view and alerts you when Block Island Canyon Complex hits yellowfin tuna's optimal 72–79°F window.
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