Single-zone SST guide
Blackfin Tuna water temperature at Northeast Florida Offshore & St. Augustine.
- Thunnus atlanticus
- Tuna
- August: absent
Typical August SST in Northeast Florida Offshore & St. Augustine is 82–86°F. Blackfin Tuna prefer 68–82°F with peak activity in 72–80°F.
SST threshold
Blackfin Tuna threshold gauge.
Year-round overlap
Northeast Florida Offshore & St. Augustine SST × Blackfin Tuna range.
Where Northeast Florida Offshore & St. Augustine typical monthly SST overlaps with blackfin tuna's preferred and optimal ranges, the species is in range.
Best months
March, April, May, October, November
| Month | Zone SST | Status |
|---|---|---|
| Jan | 64–72°F | Fishable |
| Feb | 64–70°F | Fishable |
| Mar | 66–74°F | Peak |
| Apr | 72–78°F | Peak |
| May | 76–82°F | Peak |
| Jun | 80–84°F | Fishable |
| Jul | 82–86°F | Outside |
| Augnow | 82–86°F | Outside |
| Sep | 80–84°F | Fishable |
| Oct | 76–82°F | Peak |
| Nov | 70–76°F | Peak |
| Dec | 66–72°F | Fishable |
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 Northeast Florida Offshore & St. Augustine.
Bield: Fish overlays current NOAA CoastWatch SST onto your chartplotter view and alerts you when Northeast Florida Offshore & St. Augustine hits blackfin tuna's optimal 72–80°F window.
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