CatchWindow fishing intelligence

Grand Isle, LA Daily Water Report — August 28, 2026

Boating and fishing are the top calls today at Grand Isle, with a solid morning window before the wind builds from the north-northwest. The surface is nearly flat—waves holding at a measured 0.14 metres with a six-second period—so small craft and kayaks will find easy going through the morning. Wind is already climbing, though: the representative reading of 9 knots with gusts to 13 is well above the calm we saw yesterday, when the average sat near 2.8 knots and boating scored 9.4. Today’s boating score of 7.8 still reflects a workable day, but the afternoon breeze will introduce chop that paddlers and anglers in light boats should plan around. The tide runs high just before 11:20, then ebbs to a low near 0.16 metres around 20:49—a favourable drop for shoreline foragers and wading anglers. That ebb aligns with the afternoon and evening solunar minor period starting at 18:32, and the major period from noon to 14:00, which helps explain the fishing score of 7.4. That’s essentially equal to yesterday’s 7.9, so the bite window is similar despite the stronger wind. Pressure is stable at 1016 hPa, which tends to keep fish comfortable and active through the tide change. Surfing remains marginal, as it has all week; the 5 out of 10 matches recent days, and with just 0.12 metres of south-southeast swell at six seconds, there’s not enough energy for a rideable wave. Diving data is unavailable in the current report, so we can’t compare that to yesterday’s 6.8. Wildlife viewing scores 7.4, powered by the low-tide draw and the solunar timing, though the increasing wind will make spotting birds or surface activity trickier by midday. The coming days show a clear shift. Friday’s wind tops out near 14 knots with a slight precipitation chance, and wave heights could reach half a metre by Saturday as a stronger front pushes through—Saturday’s peak wind of 20.5 knots and 47% rain chance will knock boating and kayaking scores down noticeably. Sunday through next week look calmer again, with waves dropping back toward the flat conditions we see today. Best bet today: launch before 9 a.m., work the falling tide through the noon solunar peak, and be off the water before that north wind really starts to stack the surface.