CatchWindow fishing intelligence

New Bedford Harbor, MA Daily Water Report — August 28, 2026

This is a top-tier day for getting out on the water, specifically if your feet stay dry and your hull is stable. Kayaking and boating both score in the high 8s, and diving is right there with them at 8.8. The harbor is practically flat with a representative wind of just 2 knots from the southeast and waves averaging half a meter, so the calmest conditions we’ve seen in nearly a week. That’s a direct contrast to yesterday’s breezier 8.2-knot average, which knocked boating down to a 6.8. Today’s window is forgiving, with the calmest stretch toward 11 p.m. when waves bottom out around 0.44 meters, but the real opportunity is the morning flood tide building toward the 8:43 high. That rising water, paired with the full moon’s gravitational pull and a solunar minor period from 6:15 to 7:15, tilts fishing to a solid 6.7—not a banner score, but the kind of steady action that rewards patience. The high chlorophyll reading, 2.53 mg/m³, suggests the water is rich with plankton, a reliable signal for bait concentration, though it’s worth remembering that’s a measure of productivity, not a guarantee of fish. On the tradeoff side: surfing remains a non-starter at 5.3, and those short-period swells from the south aren’t building anything worth chasing. The bigger issue is visibility. Atmospheric visibility is reported at just 0.1 kilometers, which likely means fog is hugging the harbor. For divers, that’s less of a hindrance below the surface, but for boaters and paddlers, it’s a serious hazard—especially with the full moon washing out night navigation cues. Keep your running lights on and your chart plotter close. The water temperature is 22.4 degrees Celsius, a full 1.2 degrees above the long-term average, matching the warmest readings we’ve seen in the past week. That’s comfortable for a wet suit or a light rash guard, and it aligns with the diving score, which has held steady at 8.8 since August 22. Looking ahead, Friday keeps the calm theme with even smaller waves and similar light winds. Saturday and Sunday see a slight uptick in wave height and a small chance of rain, but nothing that should wreck the weekend. The real shift comes Tuesday and Wednesday, when wave heights could push toward a meter and precipitation chances climb above 40 percent. For now, savor this: with near-glass conditions, a full moon overhead, and water temperatures that feel more like July, this is the kind of late-summer day that makes you forget the first chill is only weeks away.