Single-zone SST guide
Atlantic Bluefin Tuna water temperature at Block Island Canyon Complex.
- Thunnus thynnus
- Tuna
- August: peak
Typical August SST in Block Island Canyon Complex is 68–78°F. Atlantic Bluefin Tuna prefer 50–75°F with peak activity in 59–72°F.
SST threshold
Atlantic Bluefin Tuna threshold gauge.
Year-round overlap
Block Island Canyon Complex SST × Atlantic Bluefin Tuna range.
Where Block Island Canyon Complex typical monthly SST overlaps with atlantic bluefin tuna's preferred and optimal ranges, the species is in range.
Best months
June, July, August, September, October
| Month | Zone SST | Status |
|---|---|---|
| Jan | 42–48°F | Outside |
| Feb | 42–48°F | Outside |
| Mar | 44–50°F | Outside |
| Apr | 46–54°F | Fishable |
| May | 52–60°F | Fishable |
| Jun | 60–68°F | Peak |
| Jul | 65–75°F | Peak |
| Augnow | 68–78°F | Peak |
| Sep | 64–72°F | Peak |
| Oct | 56–64°F | Peak |
| Nov | 50–58°F | Fishable |
| Dec | 44–52°F | Fishable |
Best months
June, July, August, September, October
Spring bluefin chase sand eels, butterfish, and herring in the 50–62°F band. Troll Rapalas and stickbaits along temperature breaks. Summer fishing focuses on canyon edges and chunking butterfish on the warm-cool boundary.
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 atlantic bluefin tuna's optimal 59–72°F window.
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