CatchWindow fishing intelligence

Chatham, MA Daily Water Report — September 7, 2026

Chatham belongs to sailors and divers today. Sailing leads at 8.8 out of 10 and diving is right behind at 8.7, while boating and surfing sit in the mid-sixes, fishing is a middling 6.3, wildlife 6.8, and kayaking is the miss at 4.7. If you can pick only one outing, go under canvas or under the surface and leave the paddle ashore. A west-northwest breeze near 9 knots, with gusts to 16 and a forecast peak gust of 17.7 knots around 08:00, is doing the work. Cover is almost gone at 1 percent and no rain is indicated, which is exactly the mix sailing’s score rewards. The same light-to-moderate wind and a 0.4-to-0.6-meter wave range keep diving in strong shape; water is 19.3 C, only a tenth of a degree above average, with a marine reading of 20.3 C. Seas run about 0.58 meters at 6.25 seconds, riding a 0.46-meter swell from 69 degrees at 7.65 seconds. Calmest water is forecast near 22:00 at 0.4 meters. The catch is current: 2.1 meters per second toward 239 degrees. That, more than the breeze, is why kayaking slipped from 7.4 yesterday and boating from 8.5, even as sailing jumped from 6.8. Pressure is 1017 hPa and rising. High tide at 09:11 (1.36 meters) overlaps the morning solunar major from 08:43 to 10:43, the cleaner fishing window on a modest score; the 15:32 low sits next to a minor period if you are scoring wildlife, not a hook. Atmospheric visibility is 21.1 kilometers. That is air, not what you will see below. Diving has held the high ground most days since the start of the month; sailing is the real upgrade. Tuesday eases further, with waves only 0.2 to 0.4 meters, before wind and seas build into the 10th. Best bet: sail the morning high and drop in while the fetch is still this honest.