CatchWindow fishing intelligence

Chatham, MA Daily Water Report — October 8, 2026

Chatham gets a qualified green light today: strong for diving, solid for sailing and boating, but a more selective proposition for paddlers once the wind starts showing its teeth. The early hours are the cleanest practical window, before the day’s strongest gusts arrive. Winds are lightest around dawn, with low water at 5:07 AM and sunrise at 6:44 AM. By late morning, the tide reaches 1.64 m at 10:53 AM, overlapping the 9:56 AM–11:56 AM solunar major period. That is the day’s most useful fishing window on the supplied model, helped by rising pressure and a fishing score of 6.3/10. A second useful tide-and-timing overlap comes late, with the 11:16 PM high tide inside the 9:56 PM–11:56 PM major period, though it is plainly a darkness operation rather than a casual after-work lap. For boats and sailboats, the representative SSW wind is 7 knots, but the range matters more than the average: gusts are forecast to reach 30.5 knots around noon. Waves run 0.5–0.8 m, mostly short-period wind waves at 3.1 seconds, so the surface may feel busier and more abrupt than the modest height suggests. Boating rates 7.3/10 and sailing 7.4/10, but noon is not the time to let a pleasant morning forecast talk you into a long exposed crossing. The ocean current is listed at 1.08 m/s toward 74 degrees, another reason to keep route and return timing conservative. Diving leads the board at 8.2/10, with small waves, little cloud and water near 15.7–15.8 C. That score is better than yesterday’s 7.6, though water temperature and exposure still deserve proper thermal planning. Atmospheric visibility is forecast at 13.5 km; it is not a measure of underwater visibility. Kayaking slips to 5.4/10, well below yesterday’s 7.1, chiefly because gust potential and current make the margin thinner. The calmest seas are forecast near 11 PM at 0.48 m, but darkness is a poor bargain for most small-craft outings. Friday through Sunday look gentler on the water, with waves generally 0.2–0.6 m and peak winds below 14 knots; Monday turns wetter and breezier, while Tuesday brings the roughest outlook, up to 1.3 m waves and 25.1-knot winds. Best bet: make the late-morning high-tide window your main event, then be off the exposed water before the noon gusts start acting expensive.