CatchWindow fishing intelligence

Denman Island, BC Daily Water Report — September 5, 2026

Kayaking and small-boat time win around Denman Island today. Current conditions and the marine forecast describe a nearly still surface: representative wind is about 1 knot from the west, wave height is 0.02 meters, wind waves are listed at zero, and no rain is indicated. Kayaking scores 8.8 and boating 8.5, with diving at 8.3. Those numbers are suitability scores, not safety declarations, but they do mark a day built for easy water rather than for power or swell. Surfing is 4.5 and sailing 4.6, which is exactly what a 0.3-to-4.8-knot wind range and a 0.0-to-0.0-meter wave range will buy you. The strongest gust, 6.8 knots, is not due until 23:00. Use the morning. The 1.05-meter low at 9:43 a.m. is the tide that actually drops, and it sits against a major solunar period from 7:27 to 9:27 after a 6:40 sunrise. That is the window for paddling, diving, and shoreline work. High water reaches 4.53 meters at 6:01 p.m., with a second major period from 19:27 to 21:27 around the 19:58 sunset; the later 3.90-meter low near 10:56 p.m. barely moves the water. Fishing is only 6.4, down from 8.1 yesterday, even with barometric pressure near 1018 hPa and rising. That score uses solunar timing, tide state, pressure, wind, and available clarity, not a promise of fish. Wildlife is a middling 6.3. The tradeoffs are comfort, not sea state. Cloud cover is about 88 percent, humidity 91 percent, and air temperature runs 12.9 to 19.8 C under a 1.15 UV index. NOAA CoastWatch puts sea-surface temperature at 15.1 C, 0.9 degrees below average; the marine forecast lists 16.7 C. A 0.4 m/s current toward 207 degrees is the main moving water. Atmospheric visibility of 13.6 km is not underwater clarity. This quiet stretch has held since late August, unlike the 8.3-knot day on September 2 that cut kayaking to 5.2. Through the 11th, waves stay tiny, winds stay light, and rain chances only climb into the teens later in the week. Best bet: launch in the morning calm, work the 9:43 low, and leave the board on the rack.