CatchWindow fishing intelligence

Brandywine Shoal Light, DE Daily Water Report — August 28, 2026

Diving is the standout call at Brandywine Shoal Light today, with a score of 7.6 out of 10 that matches yesterday's rating and continues a solid stretch of underwater suitability. The numbers back it up: a light 2-knot easterly breeze barely ruffles the surface, wave heights hover around 0.34 meters, and the water temperature sits at a comfortable 25.1°C, a full degree above the long-term average for this date. That warm anomaly might help extend your time in the water, though don't read too much into it for fish behavior. The visibility at the surface checks in at 14.3 kilometers, but that's atmospheric—what you'll actually see below will depend on the very high chlorophyll reading of 9.09 mg/m³, which typically means a thick green soup of plankton. Not necessarily a dealbreaker, but expect reduced underwater contrast. Boating (7.0) and kayaking (7.1) are almost equally strong, with barely any breeze to push you around—the representative wind sits at just 2 knots, and the calmest conditions arrive near 22:00 when waves drop to 0.28 meters. The afternoon low tide at 15:35 means shallower channels, so keep an eye on your draft if you're running a deeper keel. The high tide at 21:54 under a full moon will pull plenty of water back in, but also means stronger tidal currents around that evening flood. Fishing scores a 6.3, a slight improvement over yesterday's 6.0 but still middling. The solunar major periods (12:03 to 14:03 and the overnight window) offer some structural advantage, and the rising barometer (1015 hPa and climbing) often encourages fish to feed before a change. Still, with a full moon overhead and very high chlorophyll suggesting a dense plankton bloom, don't expect crystal-clear water conditions to help your presentation. Surfing (4.7) and sailing (4.6) are the weak links today. The swell ticks in at just 0.26 meters from 121 degrees with a short 4-second period—barely enough to stand up on, and the wind waves are essentially flat. Sailing suffers from the same lack of drive; yesterday's 9.2-knot wind gave a much better 7.8 score, but today's almost dead calm means you'll be bobbing, not planing. Looking ahead, Friday brings a jump in peak wind to 14.5 knots, which could revive sailing prospects but might also kick up a slight chop. The weekend settles back to lighter breezes and continued low wave heights, with Saturday and Sunday offering similar calm conditions in the 0.2-0.4 meter wave range. Sunday looks like the pick of the near-term days for any flat-water activity, with winds dropping to 8.6 knots and waves bottoming out at 0.2 meters. Best bet: Slide into the warm, calm water this afternoon between the low tide slack and the incoming flood, when the surface is glassy and the diving is at its peak for the week.