CatchWindow fishing intelligence

Alameda, CA Daily Water Report — August 27, 2026

Today's the kind of day that reminds you why summer on the Bay is worth the fog. This is a strong boating, kayaking, and diving day, with wildlife viewing scoring an excellent 8.4. The window is wide open. Winds are light out of the west-southwest, representative at 4 knots, and calmest early this morning near 7 a.m., which is the ideal launch for paddlers. The afternoon sees the breeze barely stretch to 6 knots, with a gusty spike near 7 p.m. that may rattle a small skiff but won’t trouble a well-found boat. The primary tradeoff: the water is a solid 22.2°C—nearly a degree and a half above average—and that warmth fuels a very high chlorophyll bloom, a sign of rich surface activity. For divers, this means lower underwater visibility than the 14.1 km surface visibility suggests; you’re trading a warm top layer for green murk. Fishing checks in at a solid 6, helped by the solunar minor punch from 6 to 7 a.m., though the full major period at midday is well-timed. Surfing remains a 4.9, with a short-period swell from 280 degrees and wind waves negligible; it’s a flat, clean morning for a log if you’re patient, but no one’s calling it a standout. The barometer is stable at 1014 hPa, and with clear skies by early afternoon after morning cloud cover, the UV index will be dangerous—cover up. Compared to yesterday, all scores have edged upward, particularly for wildlife (8.4 vs 7.3), which benefits from the solunar timing aligning with light winds. The week ahead: Friday and Saturday hold similar wave height but slightly stronger winds, peaking near 7 and then 13 knots Sunday, before a dramatic drop on Monday and Tuesday, where seas flatten to 0.2-0.3 meters—a potential flat-water bonanza. Today your best bet is the calm patch from dawn through early afternoon, especially for a kayak drift or a shore-based wildlife watch near the turning of the tide.