Waters · Coast · LA · Sun, Sep 27

Grand Isle tide chart today next high 11:16 PM

Bite index 6/10 — Biting — get there by 7.

Worth a cast.

6/10
Biting

Today's bite windows

12 AM6 AMNoon6 PM11 PM
Major
12:11 AM–2:11 AM
Moon overhead
Minor
7:14 AM–8:14 AM
Moonset
Major
12:35 PM–2:35 PM
Moon underfoot
Minor
6:49 PM–7:49 PM
Moonrise

Sunrise 6:50 AM · sunset 6:50 PM · tomorrow's first major 12:59 AM–2:59 AM · windows on every water

Solunar · computed updated 8:28 AM

Conditions right now

Water temp
84°F
NOAA CO-OPS 8761724 updated 8:24 AM
Tide level
0.928ft
-0.32 ft in 24h
NOAA CO-OPS 8761724 updated 8:24 AM
Pressure
29.97inHg
falling · -1 hPa/12h
NOAA KGAO updated 10:15 PM
Wind
2mph SSW
NOAA KGAO updated 10:15 PM
Moon
99% waning
Solunar · computed updated 8:28 AM

Nearby gauges

These sit on connected water, not on Grand Isle itself.

  • Second stretch · 83.8°F
    USGS 073802516 updated 7:15 AM

What this means

Redfish
84°F is above the comfortable band. Fish deep water and the first hour of light.
Work deep.

Grand Isle tide times

DayTideTimeHeight
Sun, Sep 27 Low 6:43 AM 0.6 ft
High 11:16 PM 1.3 ft
Mon, Sep 28 Low 8:51 AM 0.5 ft
High 11:05 PM 1.5 ft
Tue, Sep 29 Low 10:26 AM 0.3 ft

Predicted heights above MLLW. The bite windows above already fold these swings in.

NOAA CO-OPS 8761724 updated 8:28 AM

Grand Isle water level today

0.928 ft above MLLW down 0.32 ft in 24 hours

That sits 29% of the way up the band it has held over the last 9 days, between 0.47 and 2.07 ft. Over the week it is down0.67ft.

09-18 0.47–2.07 ft 09-27
NOAA CO-OPS 8761724 updated 8:24 AM

The week ahead

Mon 7 Biting
Tue 6 Biting
Wed 6 Biting
Thu 6 Biting
Fri 6 Biting
Sat 7 Biting
Sun 7 Biting

Forecast days carry solunar and the wind outlook. Pressure and gauge movement land the morning of.

Grand Isle boat ramps and public fishing access

Louisiana Department of Wildlife and Fisheries lists 4 public access points on the Grand Isle waters within 12 mi of our gauge.

This inventory carries the agency's own vintage of 2016. Lanes, docks and fees can have changed since — call ahead if a detail decides your trip.

Access data from Louisiana Department of Wildlife and Fisheries. Distances are straight-line from our gauge, not driving distance.

Louisiana Department of Wildlife and Fisheries · public access inventory

Before you go

A Louisiana fishing license covers this water — $17 a year for residents. LDWF sets the rules and is the one that counts.

What it costs, and who is exempt →

Nearby waters today

Questions people ask about Grand Isle

Answered from the same readings as the rest of this page. Where we have no basis for an answer, there is no entry — spot-by-spot local knowledge is not something we can claim for Grand Isle.

Is it worth fishing Grand Isle today?
6 out of 10 — biting. Worth a cast. The strongest stretch is 12:11 AM–2:11 AM. That number is worked out fresh each morning from the solunar windows, the pressure trend, the water level and the water temperature.
What time should you fish Grand Isle?
Today's major windows run 12:11 AM–2:11 AM and 12:35 PM–2:35 PM, with minor windows at 7:14 AM–8:14 AM and 6:49 PM–7:49 PM. Sunrise is 6:50 AM and sunset 6:50 PM. A major landing on first or last light is the stretch worth setting an alarm for.
What is the water temperature at Grand Isle?
84°F, read at 8:24 AM from NOAA CO-OPS station 8761724. That is 0.2 degrees cooler than 24 hours ago.
What is the water level at Grand Isle right now?
0.928 ft above MLLW, read at 8:24 AM from NOAA CO-OPS station 8761724. Over 24 hours it is down 0.32 ft.
Are water levels rising or falling at Grand Isle?
Falling. The lake is down 0.32 ft in 24 hours and down 0.67 ft over the week. Over the last 9 days it has held between 0.47 and 2.07 ft. Every figure here is a difference between two gauge readings, not a forecast — what the level does next depends on rain and on what the dam releases.
Can you eat the fish you catch in Grand Isle?
That is a health question and it belongs with the state, not with us. LA publishes fish consumption advisories through its health or environmental agency, and those are the ones that count. We give no eating advice.
Do you need a licence to fish Grand Isle?
Yes. A Louisiana fishing license covers this water, required from age 18. LDWF sets the rules and is the one that counts.

What a Louisiana license costs, and who is exempt

What size fish can you keep in Louisiana?
It depends on the species, and several have slot limits rather than a simple minimum. Open to harvest today: spotted seatrout (speckled trout), red drum (redfish), black drum, southern flounder. Seasons here change mid-year by agency order, so the status is re-checked every morning.

Spotted seatrout (speckled trout) limits · Red drum (redfish) limits · Black drum limits · Southern flounder limits · Check a length against the rules

Where these numbers come from

The CO-OPS station sits on the island itself, and the USGS gauge in Barataria Pass adds a second water-temperature reading on the back side.

No one types these in by hand. If a source goes quiet, the page says so instead of showing you yesterday.