Single-zone SST guide
Longbill Spearfish water temperature at Norfolk & Washington Canyons.
- Tetrapturus pfluegeri
- Billfish
- August: good
Typical August SST in Norfolk & Washington Canyons is 74–84°F. Longbill Spearfish prefer 68–79°F with peak activity in 72–77°F.
SST threshold
Longbill Spearfish threshold gauge.
Year-round overlap
Norfolk & Washington Canyons SST × Longbill Spearfish range.
Where Norfolk & Washington Canyons typical monthly SST overlaps with longbill spearfish's preferred and optimal ranges, the species is in range.
Best months
June, July, August, September
| Month | Zone SST | Status |
|---|---|---|
| Jan | 48–58°F | Outside |
| Feb | 48–56°F | Outside |
| Mar | 50–60°F | Outside |
| Apr | 54–64°F | Outside |
| May | 60–70°F | Fishable |
| Jun | 68–78°F | Peak |
| Jul | 72–82°F | Peak |
| Augnow | 74–84°F | Peak |
| Sep | 70–80°F | Peak |
| Oct | 64–72°F | Fishable |
| Nov | 56–64°F | Outside |
| Dec | 50–60°F | Outside |
Best months
June, July, September
Spearfish are bycatch on white marlin and tuna trolls in canyon waters. They eat the same baits as whites but ride deeper. Most encounters are accidental.
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 Norfolk & Washington Canyons.
Bield: Fish overlays current NOAA CoastWatch SST onto your chartplotter view and alerts you when Norfolk & Washington Canyons hits longbill spearfish's optimal 72–77°F window.
Start free trial →