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Bield:Fish
Sea surface temperature guide

Louisiana Deepwater & Rigs SST guide.

Gulf of Mexico30130 mi offshoreEddy-dependent access

Venice, Louisiana is one of the most productive offshore fishing destinations on the planet — deepwater oil rigs hold yellowfin tuna year-round, and the Midnight Lump in winter is one of the most consistent blue marlin spots in the world.

Nearest ports
Venice LAGrand Isle LACocodrie LA

Typical SST by month

Climatological norms

Climatologically typical sea surface temperature ranges based on NOAA CoastWatch SST climatologies. Year-to-year variation is real — verify with current SST imagery before each trip.

MonthTypical SSTDominant currentNotes
January6472°FLoop Current influence; rig fishingYellowfin off oil rigs.
February6470°FLoop Current influenceSame.
March6874°FLoop Current influenceYellowfin and wahoo strong.
April7278°FLoop Current influencePeak yellowfin offshore.
Maynow7682°FLoop Current influenceMulti-species rig fishing.
June8084°FLoop Current influencePeak summer; blue marlin season.
July8286°FLoop Current influencePeak.
August8286°FLoop Current influenceSame.
September8084°FLoop Current influenceContinuing strong.
October7682°FLoop Current influenceStrong fall.
November7078°FCooling waterYellowfin pattern continuing.
December6674°FCooling Loop Current proximityYellowfin off rigs.

Species accessibility by month

For each target species, the cells show whether typical monthly SST in Louisiana Deepwater & Rigs falls in that species' preferred or optimal range. Best all-around months: May, October, April, November.

PeakGoodFairPossibleAbsent

Species in range — May

For each species in their preferred SST range this month, the gauge shows the threshold band — verify against current SST imagery before deciding on the run.

  • Yellowfin TunaOptimal 7279°F
    50°55°60°65°70°75°80°85°90°
    Typical May SST in this zone: 7682°F
  • Blackfin TunaOptimal 7280°F
    50°55°60°65°70°75°80°85°90°
    Typical May SST in this zone: 7682°F
  • Mahi-MahiOptimal 7580°F
    50°55°60°65°70°75°80°85°90°
    Typical May SST in this zone: 7682°F
  • Blue MarlinOptimal 7682°F
    50°55°60°65°70°75°80°85°90°
    Typical May SST in this zone: 7682°F
  • WahooOptimal 7582°F
    50°55°60°65°70°75°80°85°90°
    Typical May SST in this zone: 7682°F
  • Greater AmberjackOptimal 7078°F
    50°55°60°65°70°75°80°85°90°
    Typical May SST in this zone: 7682°F

Temperature break patterns active in this zone

Persistent SST features that concentrate baitfish and predators. Use SST imagery to find the break, then fish the warm side.

  • Loop Current Edge

    5°F typical break

    The Loop Current is the Gulf of Mexico's equivalent of the Gulf Stream — warm Caribbean water that flows north into the Gulf and loops back through the Florida Straits. Its position varies year to year. The current's edge and the eddies it sheds are the primary blue-water structure in the Gulf.

    Active months
    JanFebMarAprMayJunJulAugSepOctNovDec
    Source →

Canyon & structure features

  • Mississippi Canyon
  • Lump
  • Midnight Lump
  • Spur Loop

NOAA marine forecast

NOAA Zone GMZ570

Wind, swell, and tide-stage forecasts for the offshore zone. Pair with SST imagery for trip planning.

Live SST imagery for Louisiana Deepwater & Rigs.

Bield: Fish overlays NOAA CoastWatch SST imagery onto your navigation view, highlights temperature breaks within your target species' threshold band, and alerts you when your home zone hits the optimal window.

This page shows climatological SST patterns for planning purposes. Live SST imagery is available in the Bield: Fish app via NOAA CoastWatch — actual conditions vary year to year and verify before each trip.