CatchWindow fishing intelligence

New London, CT Daily Water Report — August 28, 2026

Go early. Thursday August 28 delivers a solid, calm-water day for boaters and paddlers, but that blanket of fog sitting over New London will mute the experience for anyone wanting to see where they’re going. Visibility at 0.1 km is the big story here—that’s essentially zero, and it’s going to hang around until the late-morning sun burns through that 100% cloud deck. The southeast breeze is negligible, representative at just 2 knots with gusts barely touching 7, and wave heights have flattened to a uniform 0.4 meters, so the physical conditions are nearly ideal for a quiet cruise or a kayak trip on the outgoing tide. The true windows are the slack periods around the 10:22 high tide and the 16:36 low, when currents ease and you can pick your direction without fighting the flow. Diving scores a 7.6, matching the past several days, and with the surface so placid and water temperature sitting a warm 0.8 degrees above average, the underwater visibility is likely decent despite the air fog—just don’t expect a mirror above the surface. Fishing also checks in strong at 7.2, helped by the full moon overhead and a rising barometer at 1015 hPa, though that chlorophyll reading of 20 mg/m³ signals a dense bloom, so the water will look green and soupy, even if the biology is active. Surfing and sailing are both in the 4s, and that’s no surprise with barely a ripple and a lethargic 5-second swell period—leave the boards and sails at home. Compared to yesterday, when boating was a 7.2 and kayaking a 6.4 under slightly breezier conditions, today offers a meaningful upgrade for anyone launching a boat or paddlecraft, as long as you can navigate by instruments or a good sense of direction. Looking ahead, Friday stays quiet with similar wave heights and no precipitation, but Saturday introduces a 28% rain chance and slightly heavier winds around 9.5 knots, so the window for pristine flat water closes after today. Sunday through Tuesday bring building swell toward 0.7 meters and increasing instability, with rain chances rising to 45% by Wednesday, so get out Thursday if you want the glass. Your best bet: launch an hour after the 10:22 high and lose yourself in the full-moon aftermath while the fog gives way to late-August warmth.