Grand Isle, LA Marine Weather & Fishing Forecast

Grand Isle, LA Conditions: Saturday, August 1

On Saturday, August 1, Grand Isle, LA sees high tide at 11:57 AM (1.0 ft), low tide at 9:43 PM (0.3 ft). Winds 14–23 mph from the W gusting to 28 mph. Air temperatures 85–87°F. Current water temperature is about 87°F. The strongest fishing windows line up with the moving water around each tide change, roughly an hour on either side.

Tides from NOAA Station 8761724 · wind & temperature from Open-Meteo. Open the live forecast for hourly charts and the 7-day outlook.

Frequently Asked Questions

What are the tides in Grand Isle, LA today?

Grand Isle, LA experiences a mixed semidiurnal tide pattern common along the Gulf Coast, with two unequal high and low tides each day. The difference between highs can be significant, so check both tide heights when planning your trip.

What is the best time to fish in Grand Isle, LA?

The best fishing near Grand Isle, LA is typically one to two hours before and after each tide change, when moving water flushes bait off flats and through passes. On the Gulf Coast, outgoing tides are often the most productive because they concentrate baitfish in channels and creek mouths.

Is it safe to boat in Grand Isle, LA today?

Check the live wind forecast above for current conditions near Grand Isle, LA. Gulf waters can build steep chop quickly in winds above 15 mph, especially when wind opposes the tidal current. Afternoon sea breezes are common from spring through fall and can increase winds significantly after midday.

What is the water temperature near Grand Isle, LA?

Water temperatures near Grand Isle, LA typically range from the mid-50s in winter to the upper 80s in summer. Winter cold fronts can drop shallow bay temperatures rapidly, pushing redfish and trout into deeper channels. Summer heat concentrates fish around current and deeper structure.

What wind conditions are expected in Grand Isle, LA today?

The wind chart above shows today's hourly forecast for Grand Isle, LA using Open-Meteo weather model data. Along the Gulf Coast, east and southeast winds typically produce the best inshore fishing conditions with cleaner water, while west and southwest winds can push murky water across bays.

Fishing in Grand Isle, LA

Grand Isle is Louisiana's only inhabited barrier island and the fishing epicenter of the state's legendary coastal marsh fishery. Grand Isle sits at the edge of some of the most productive coastal waters in North America, where vast Louisiana marshes drain into the Gulf and create nutrient-rich estuaries that support extraordinary numbers of redfish, speckled trout, and flounder.

Planning Your Trip

The barrier island position means anglers can fish both the Gulf-side beach and the protected back bay simultaneously. The area's offshore fishing is exceptional, with oil and gas platforms dotting the Gulf within easy reach, holding red snapper, amberjack, and during summer months, incredible mahi-mahi and wahoo action. The annual Grand Isle Tarpon Rodeo is one of the South's most historic fishing tournaments.

Grand Isle is the jumping-off point for venturing into Louisiana's "fishing triangle" — the protected bay waters behind the island where the redfish and trout fishing is among the best in the country. Tidal creeks, ponds, and marsh edges produce exceptional catch rates of both species year-round. Use the live marine forecast to find the optimal window for each type of fishing.

What's Biting in Grand Isle, Season by Season

Spring: Speckled trout arrive around the passes in force by May, with Caminada and Barataria Passes loading up as shrimp move and water clears. Redfish work the surf and marsh edges all spring. Sheepshead finish spawning on the bridge and platform structure, and pompano hit the beach on the incoming tide.

Summer: This is peak trout season, with limits common around the passes, the surf and the nearshore platforms on calm mornings. Tarpon school off the beach in July and August. Redfish, mangrove snapper and flounder hold on the rocks and pilings, and offshore boats run to the close rigs for snapper and cobia.

Fall: Bull redfish crowd Caminada and Barataria Passes from September through November, chewing on cracked crab in the current. Trout shift from the beach into the bays and bayous as shrimp migrate out of the marsh, feeding under diving birds. Flounder move through the passes, and sheepshead thicken on structure.

Winter: Trout and redfish pull into the deeper bayous, canals and dead-end lagoons behind the island, where slow-fished plastics produce between fronts. Sheepshead and black drum stack on bridge pilings and nearshore structure. Sunny afternoons bring redfish onto the shallow marsh flats, and the surf can still give up whiting.

Local Spots Worth Knowing

Caminada Pass at the west end of the island and Barataria Pass at the east end are the twin engines of this fishery, both holding trout and bull reds in season. Grand Isle State Park on the eastern tip offers surf access and a fishing lagoon. Elmer's Island, west across Caminada Pass, gives miles of walkable beach and pass-edge fishing. The Caminada Pass bridge and its old pilings hold sheepshead and drum. Behind the island, the Barataria Bay marsh is a year-round redfish factory reachable from the island's marinas.

Nearby Marine Forecasts