CatchWindow fishing intelligence

Martinez-Amorco Pier, CA Daily Water Report — October 4, 2026

Martinez-Amorco Pier gets a clear green light for boats and paddles today, with a caveat: the water may be flat, but the afternoon heat is not. Boating leads the board at 9.2/10 and kayaking follows at 8.6/10, supported by a zero-wave, zero-swell marine forecast, light WNW winds around 4 knots, no rain indicated, and a modest current near 0.08 m/s toward the southwest. Those scores describe favorable conditions, not a substitute for normal on-water judgment. The best all-around window is early, from dawn through the late-morning high tide. Dawn begins at 6:40 AM, sunrise is 7:07, and the 10:06 AM high reaches 1.30 m. That overlaps the 7:08–9:08 AM solunar major period, giving anglers their most promising timing of the day; fishing rates 6.7/10, improved from yesterday’s 5.8. Pressure is rising near 1013 hPa, and the breeze stays light, though gusts are forecast to top out near 13.8 knots around 11 AM. A second useful stretch arrives around the evening high tide at 8:24 PM, with the 7:08–9:08 PM solunar major period nearly dead-on it. Expect less heat and a little more tide under the pier. The tradeoff is fading light: sunset is 6:50 PM and dusk ends around 7:16 PM. The afternoon low of 0.80 m at 2:59 PM also gives shoreline explorers a defined lower-water opportunity, while wildlife timing gets a 7.1/10 score from the low-tide proximity, solunar timing, and light wind. Diving is a middling 6.8/10. Surface conditions and the 21.4 C marine temperature are cooperative, but chlorophyll is very high at 6.44 mg/m³, indicating bloom conditions; do not confuse the excellent 47.6 km atmospheric visibility with underwater clarity. Sailing earns 6.8/10: smooth water, yes, but not much wind to work with. Compared with recent CatchWindow estimates, boating improves on yesterday’s 8.9, kayaking rises from 8.0, while diving remains unchanged. The next several days stay exceptionally flat with little rain and generally light winds, but daytime highs climb into the mid-30s C. Best bet: launch early, fish the morning major period into the 10:06 AM high, and be off the water before the heat starts acting like it owns the place.