CatchWindow fishing intelligence

Denman Island, BC Daily Water Report — October 4, 2026

Denman Island gets an emphatic go for small craft and quiet-water plans today: kayaking leads the board at 9.3/10, with boating close behind at 8.8/10 and diving at 8/10. This is a remarkably placid setup, not a promise that the water is harmless. Winds are forecast at just 0.5 to 3.5 knots, waves effectively flat, and no rain window is indicated. The marine forecast’s representative 0.02 m wave height is about as close to a glassy invitation as the numbers get. The best all-around on-water stretch runs from dawn through the afternoon high tide. First light begins around 6:51 AM, the tide bottoms at 1.14 m at 6:18 AM, then rises strongly to 4.76 m at 2:27 PM. That rising-water period offers the day’s most useful overlap for paddlers, boaters, and divers looking for minimal wind and wave interference. Water remains cool at 13.7 C, despite sitting 0.8 C above average, so immersion protection and a conservative margin still matter. Atmospheric visibility is forecast near 17.7 km, though that should not be mistaken for underwater visibility. Anglers have a decent, rather than banner, day at 6.4/10. The most promising timing is the 7:17–9:17 AM solunar major period, with a shorter minor window from 1:47–2:47 PM overlapping the afternoon high. Stable pressure near 1017 hPa and very light wind help the setup, but the fishing score is lower than yesterday’s 6.9 and well below the 8.2 posted on September 27. The chlorophyll reading is high at 2.48 mg/m³, but it is not a fish report. Sailing is the odd one out at 5.2/10: smooth water, yes; enough breeze to make progress without patience, not especially. Wildlife scores 6.1/10, with low-tide proximity early and the evening major period from 7:17–9:17 PM offering the better timing. The evening low arrives at 8:24 PM, after sunset at 6:55 PM. The next several days stay unusually gentle through October 8, with light winds and near-flat seas; a more noticeable wave increase is forecast October 9. Best bet: launch after dawn, work the rising tide, and enjoy the rare luxury of water that is calmer than your to-do list.