CatchWindow fishing intelligence

San Juan, La Puntilla, San Juan Bay, PR Daily Water Report — October 8, 2026

A strong all-round water day is on tap at La Puntilla, with diving and sailing leading the card and boating close behind. The 8.8/10 diving score and 8.7/10 sailing score reflect a manageable 0.6–0.7 m sea state, warm 30 C marine water, and an ESE breeze that should generally sit near 8 knots before becoming more assertive later. The best broad window is early: dawn through late morning offers the lighter end of the 2.6–12.6-knot wind range, before the day’s strongest gusts—up to 16.7 knots around 3 PM—arrive during the 11 AM–6 PM rain window. Waves are not expected to get large, but the short 5.9-second overall wave period and 2.15-second wind waves can still make the surface feel busier than the height alone suggests. The calmest modeled wave height, 0.56 m, occurs near 1 AM; for daylight users, the practical play is simply to get out early. For anglers, the 6.5/10 fishing outlook is decent rather than electric. The late-morning solunar major period, 9:43–11:43 AM, lines up with a falling tide toward the 1:08 PM low, while pressure is rising from a 1014 hPa representative reading. Another major period runs 9:43–11:43 PM. The 7% waning crescent also brings a pre-dawn minor period from 4:13–5:13 AM. Those are timing aids, not guarantees. Kayaking rates 7.2/10: workable in the morning, less appealing once gusts and rain potential build. Boating remains favorable at 8.4/10, though afternoon crews should account for the gust spread. Atmospheric visibility is forecast near 43 km, but that is not an underwater-visibility reading. CoastWatch chlorophyll is low at 0.06 mg/m³, while SST runs 0.8 C above average. Compared with yesterday, diving holds at 8.8, boating improves from 8.1, while fishing eases from 7.7 and kayaking from 8.0. Friday through Tuesday look wetter, with rain chances of 73–96% and waves generally building into the 0.7–0.9 m range. Best bet: launch early, enjoy the relatively tidy morning, and let the afternoon gusts have the last word.