CatchWindow fishing intelligence

Culebra, PR Daily Water Report — August 23, 2026

Culebra is a sailor’s and diver’s day more than a paddler’s. Sailing and diving both sit at 8.6 out of 10, fishing holds 7.4, and surfing is a workmanlike 7.1 on a short easterly sea. Boating only reaches 5.5, and kayaking falls to 3.8. Those numbers are suitability scores, not a safety stamp, but they draw a clean line: the same patch of water favors a hull with some authority and a tank on your back, not a small paddle craft. A representative east wind of 11 knots, gusting to 16, is doing most of the work. The day’s range is 8.1 to 15.3 knots under a stable 1016 hPa barometer and 75 percent cloud, which is exactly the mix the sailing score uses. The overnight tradeoff is real. The strongest gust, 20.2 knots, is forecast at 04:00 and overlaps the 03:22–05:22 solunar major, so anyone fishing that first window is buying timing with a damp, blustery pre-dawn. The cleaner fishing window is the afternoon major, 15:22–17:22, after that early punch and while pressure stays steady. A waxing gibbous moon, 76 percent lit, rises at 11:39 and sets at 21:55. Waves barely budge, 1.0 to 1.1 meters, calmest near 00:00 at 0.98 meters. The sea is a 0.92-meter swell at a short 4.35 seconds from 98 degrees plus half-meter wind waves at 2.65 seconds — enough chop for that 7.1 surf score, not a long-period gift. Marine water is 29.2 C, a tenth of a degree above average. A 1.2 m/s current setting toward 309 degrees is the quiet spoiler: it is inside the boating and kayaking methods and is why small craft get the short end. Light rain is forecast from 03:00 through 23:00, yet the representative total is only 0.1 mm — a film, not a flood. Atmospheric visibility is 6.84 km under that overcast; that is air, not the view below. Chlorophyll is a moderate 0.15 mg/m3, normal coastal productivity, and nothing more. Yesterday’s reconstructed scores were identical for diving, a hair higher for fishing and wildlife, and a step weaker for sailing in a 15-knot breeze. Through the week ahead, air stays in the high 20s, peak winds run 15 to 17 knots, rain chances swing from 62 percent tomorrow toward the mid-30s later, and waves build toward 1.1–1.3 meters. Best bet: take the afternoon easterly under sail, or go under on the diving score, and leave the kayak dry.