CatchWindow fishing intelligence

Vaca Key, Florida Bay, FL Daily Water Report — October 4, 2026

Vaca Key gets a clear go for most water plans today, with boating the standout at 8.9/10 and kayaking, diving, and fishing all firmly worthwhile. It is not glass-calm—waves run roughly 0.6 to 0.9 meters, with a short 3.95-second wave period—but the light easterly wind, near 5 knots, keeps the day more manageable than the chop might suggest. Treat the 21-knot gust noted around midnight as a reminder that the quietest-looking forecast still deserves a weather eye. The best all-around daylight window is early: dawn begins at 6:55 AM, high tide arrives at 6:52 AM, and the first major solunar period runs 7:18 to 9:18 AM. That overlap favors anglers, while the higher water and modest wind should also suit boaters, paddlers, and divers looking to get moving before the afternoon low. Fishing earns 7.1/10, supported by the tide, stable 1015 hPa pressure, and light wind. Diving rates 8/10; marine water temperature is 30 C, though the supplied 14.6 km visibility is atmospheric visibility, not a read on underwater clarity. By early afternoon, the tide falls to 0.12 meters at 1:50 PM, close to the 1:48 to 2:48 PM minor solunar period. That can be a useful timing cue, but low water is the tradeoff for anyone navigating shallow routes or launching from the shoreline. The current is forecast toward the south at about 0.19 m/s, another small but real factor for paddlers and divers. Heat will be part of the workload: air temperatures reach about 30.3 C, with a representative feels-like temperature of 32.5 C. Compared with the reconstructed recent CatchWindow history, today improves notably on yesterday for boating, kayaking, fishing, and wildlife, while sailing slips from 7.1 to 6.5 despite lighter representative wind—proof that a sail score is more than a wind-speed contest. No rain is indicated, skies are forecast clear, and pressure is steady. Monday through Thursday look progressively flatter, especially Tuesday through Thursday with waves around 0.1 to 0.3 meters, though rain chances rise to 40% Wednesday and Thursday; wind and waves build again late week. Best bet: launch near first light, use the high-tide morning window, and be back through the skinny water before the 1:50 PM low turns route planning into arithmetic.