CatchWindow fishing intelligence

South Padre Island CG Station, TX Daily Water Report — August 28, 2026

Good decision day across the board, with standout conditions for sailors and divers, and the best single window for fishing arriving mid-afternoon. This is not a day to stay ashore. The dominant feature is a steady ESE wind at 11 knots, gusting to 13, paired with a nearly flat sea state. Waves average just 0.32 meters at a short 3.5-second period, with the calmest stretch near sunrise dropping to 0.26 meters. That combination, along with 5 percent cloud cover and 19 kilometers of visibility, makes this an exceptional sailing and diving day, both scoring 9.2 out of 10. The diving score matches yesterday's peak, and it is a full point higher than the 8.2 from two days ago, driven by the same light wind and calm water that persisted through late August. For boaters, the 7.9 score is solid, though the afternoon gusts near 14 knots will require a steady hand. Fishing sits at 6.9, edging down slightly from the past week's 7.1 to 7.4 range. The full moon overhead, 100 percent illuminated, creates strong solunar pull during the major period from 12:31 to 14:31, which aligns with a rising tide toward the 14:42 high. That is your best bet for hookups, despite the marginal 0.18-meter swell arriving from 119 degrees. The minor periods around dawn and dusk also hold promise, especially with the low tide at 22:30 exposing structure, though the midday window offers the most favorable wind and light. Surfing remains a 4.6, unchanged from yesterday, and frankly not worth the quiver haul. The flat conditions and short-period swell simply aren't building any rideable faces. Kayakers earn a 6.3, which is fine for a calm paddle in the early morning or late evening but carries no urgency given the mild conditions. Wildlife watchers get a 6.9, aided by the low tide exposure near 22:30 and the full moon's pull, but the moderate chlorophyll reading of 0.52 mg/m³ suggests typical coastal productivity, nothing exceptional. Looking ahead, Friday holds similar wave heights but a slight uptick in afternoon wind, while Saturday and Sunday see wind ramping to 15 knots and waves building to 0.4 meters, which will favor sailors even more but start to erode the diving window. The temperature remains in the low 80s Fahrenheit, with no rain expected through the weekend. Best bet: Set your lines between noon and 2:30 PM when the tide is pushing hard against the full moon's pull, and the Gulf is glassy enough for a fin kick.