CatchWindow fishing intelligence

Port Aransas, TX Daily Water Report — August 28, 2026

Today's window: early afternoon through evening, with boating and diving leading the pack. Here's the deal: a southeast breeze around six knots, glassy wave heights at or below half a meter, and a rising barometer—all of it points to a calm, stable day on the water. The boating score of 8.6 is the standout, reflecting light wind, low waves, and zero rain chance. Diving ties its recent-best at 8.0, with that warm 30.2°C surface temperature and light chop making for comfortable conditions, though we don't have a direct measure of underwater visibility to confirm clarity. Kayaking and sailing both sit in the high 7s, which is solid for recreational paddling or a relaxed cruise, though the wind is on the lighter side for a spirited sail. A couple of tradeoffs. That full moon tonight, 100% illuminated, with a major solunar period straddling noon to 2:30 p.m., gives fishing a respectable 6.6—but that's a step down from yesterday's 7.2 and last week's 7.8. The tide range is negligible, barely 20 centimeters from high to low, so the usual concentration of bait movement around a strong falling tide isn't here. The midday low at 0.12 meters is worth noting for shoreline explorers wanting exposed sandbars, but the lack of tidal flush keeps the fishing score middling. Surfing remains a 4.5, unchanged from the trend. The swell is short-period, two to three seconds, and the wave height barely nudges half a meter—fun for a longboard if you're desperate, but not a day to drive for. Compared to recent memory, today's boating and diving conditions are the best we've seen since at least the 22nd, when sailing hit 9.2 on a stronger breeze. What's different now is the stability: that high pressure building in, the steady southeast flow, and no rain in sight. Looking ahead, Friday holds similar calm seas, but watch Saturday into Sunday—wind ramps to 15-17 knots and waves push toward 0.6 meters, which will favor sailors and thrill boaters but start knocking down the diving and kayaking scores. If you're heading out today, get on the water by noon and you'll find the calmest seas of the week, with a falling tide and a full moon rising to close the day.