CatchWindow fishing intelligence

Friday Harbor, WA Daily Water Report — August 27, 2026

Today around Friday Harbor, the water is a pleasant proposition—boating and diving lead the pack, with high suitability scores that reflect genuinely favorable conditions. For boaters, a 7.8 out of 10 is underpinned by light northwest winds averaging just 3 knots and a day-long range of 1 to 6.4 knots, combined with minimal wave heights that stay around 0.3 meters and a flat swell. The calmest stretch arrives near 8 a.m., when waves dip to a mere 0.06 meters, making that your prime window for a smooth run. Divers will find kindred conditions: a 7.6 score benefits from the same gentle wave climate, a marine surface temperature of 16.8 degrees Celsius, and rising barometric pressure at 1018 hPa, which tends to stabilize the water column. Kayakers and anglers also have decent windows, though with some tradeoffs. Kayaking scores 6.7, the same as fishing, and early morning is the smart play for both—the minor solunar period from 6:06 to 7:06 a.m. overlaps with that calmest wave window, and the waxing gibbous moon at 98% illumination exerts moderate pull. Fishing’s solunar boost from 11:36 a.m. to 1:36 p.m. might tempt a midday trip, but by then winds will be nudging toward their afternoon peak of 6.4 knots, and the sea state will be slightly less glassy. Still, with zero precipitation forecast and 19.7 kilometers of atmospheric visibility, the day is free of weather distractions. Wildlife watchers get a 6.6, a step down from yesterday’s 9.1. That drop reflects today’s less dramatic wind history—yesterday’s stronger 4.6-knot breeze may have been stirring up surface activity, while today’s lighter air suggests more placid viewing but fewer dynamic feeds near the surface. Surfing trails at 4.5, and that’s no surprise: the dominant swell is a paltry 0.08 meters from 189 degrees with a 2.95-second period, and wind waves at 0.32 meters aren’t building any rides. Leave the board at home. Compared to the past few days, boating and diving are holding steady or even improving, while fishing has retreated from yesterday’s 8.2. Sailing at 5.8 is a slight decline from the 6.4 of the last two days—the light and variable wind direction just doesn’t deliver the consistency sailors want. Looking ahead, the forecast through the weekend keeps things manageable. Friday keeps winds below 9 knots with slight rain chances, and Saturday sees similar wave heights with a higher precipitation probability. The real catch is Monday, August 31, when winds bottom out near 3.4 knots and waves shrink to a flat 0.0 to 0.2 meters—that might be the calmest window of the entire stretch. For now, get out early this morning if you’re after a serene start, because the afternoon’s gentle breeze is still better than what most inland spots get all week.