CatchWindow fishing intelligence

San Juan, La Puntilla, San Juan Bay, PR Daily Water Report — August 22, 2026

Today in San Juan Bay, the water conditions are looking inviting for most activities, with diving taking the top spot at 8.9 out of 10. The sea is calm enough for a leisurely dive, thanks to manageable wave heights of 0.68 meters and a pleasant sea surface temperature of 28.9°C. The clear blue, oligotrophic waters promise excellent visibility for exploring underwater. Fishing enthusiasts can also rejoice with a solid 8.2 score. The best windows for casting your line are during the solunar major periods between 14:45-16:45 and 02:45-04:45, when the fish are most likely to bite. With stable barometric pressure and no rain in sight until noon, conditions are favorable for a fruitful day on the water. Surfers might find today a bit underwhelming with a score of 6.1, as the waves are on the smaller side, peaking at 0.8 meters. However, if you’re keen on a gentler ride, the calmest waves will be around 19:00. The easterly winds, gusting up to 13 knots, might not offer the best push for catching those thrilling breaks. Sailors and boaters can expect a smooth ride, scoring 7.9 and 7 respectively, with consistent winds and low cloud cover. Kayakers may find the conditions slightly challenging with a score of 5.9, as wind waves are at 0.34 meters, but the lack of rain and moderate current make for a tolerable outing. Looking ahead, the weather is set to keep us on our toes. Tomorrow brings a near-certain chance of rain, but wave heights will remain steady. By midweek, expect an uptick in both wind and swell, offering potentially more exciting conditions for surfers and sailors alike. For today, if diving’s your thing, grab your gear and head out—the waters are calling your name!