CatchWindow fishing intelligence

Vaca Key, Florida Bay, FL Daily Water Report — August 27, 2026

This is a great day to be on Florida Bay, with fishing and boating taking top honors and a stable atmosphere that should hold through the evening. The early verdict: go fishing, go boating, and if you're a sailor, you'll find a workable window, but leave the surfboard at home and don't expect ideal conditions for a paddle. The easterly wind has settled into a pleasant 6-knot breeze, gusting only to 7 knots, which is a dramatic improvement over yesterday's 14.7-knot blow that hammered the bay. That wind shift alone has rescued the boating score, jumping from a mediocre 5.8 yesterday to a solid 7.2 today. The wave heights have flattened to just over a foot, with a short 3.8-second period that keeps the chop manageable. The key window for anglers will be the solunar major period from late morning into early afternoon, 11:41 to 13:41, when the fishing score peaks at an 8 out of 10. The barometer is holding steady at 1017 hPa, a classic sign of stable air that often coaxes fish into a feeding mood. Combine that with the waxing gibbous moon, 98 percent full, and you have good light penetration for sight-fishing the flats, though the water clarity data isn't available to confirm visibility. For boaters, the winds are light enough to open up the whole bay, but there is a tradeoff: the overnight gust of 16.5 knots at 1 a.m. serves as a reminder that these late-summer conditions can flip. Today, though, you're looking at a 7.2 boating score, and the calmest wave heights arrive near 22:00, when the bay should glass over. Kayakers get a 6 out of 10, which is workable but not stellar; the 0.6-meter peak waves and building afternoon heat with a feels-like temperature of 33.7 Celsius will make exposed crossings less fun. Diving isn't scored today, likely due to a data gap in water temperature or clarity, and surfing at 4.6 is a non-starter. The swell is almost nonexistent at 0.32 meters with a 3.35-second period, arriving from the southeast, and there's no energy to push a rideable wave. Looking ahead, Friday holds at 28 to 32.5 degrees with similar calm seas, but by Saturday the chance of rain jumps to 56 percent as winds strengthen into the mid-teens. Sunday and Monday look breezier still, with peak gusts near 17 knots, so today and tomorrow are your best bets before the pattern breaks down. Your best bet: slide onto the bay between late morning and early afternoon for the day's peak fishing hour, when stable air and a high moon should have fish looking up.