CatchWindow fishing intelligence

Charleston, SC Daily Water Report — August 23, 2026

This is a boat-and-paddle day in Charleston, with diving nearly as inviting and the surf looking more like a warm bath than a ride. Leave the sail a little slack unless you enjoy ghosting. Open-Meteo’s current conditions and forecast put representative wind at just 2 knots from the SSE, gusting to 3, inside a 1.5–9.2 knot day whose strongest gust, 15 knots, is timed at midnight. That is a real change from yesterday’s reconstructed 10.8-knot breeze, and it is why boating climbs to 8.9 and kayaking to 8.0 while sailing eases to 5.6—those scores lean on wind, waves, current, and (for boats) cloud cover, and today’s air simply does not fill a sail. Waves hold 0.4–0.6 meters, calmest near 10:00 at 0.42 meters, with a short 4.9-second period and a 0.26-meter swell from 148 degrees. Surfing’s 5.0 follows that height, period, direction baseline, and wind. The same quiet surface and 30.8°C marine water, about 1.2°C above average, feed diving’s 8.1; that score is not a safety stamp and does not describe what you will see below. Atmospheric visibility is 28.2 kilometers under 2 percent cloud—air clarity, not underwater. Heat is the tax. Air reaches a representative 31.5°C and feels like 39.6°C, with a 23.7–31.5°C range, 64 percent humidity, and a UV index of 7.45. The humane hours sit after 05:49 sunrise, before the afternoon owns the deck. NOAA tides run a 1.39-meter high at 04:43, a 0.31-meter low at 10:49, a 1.69-meter high at 17:35, and a 0.38-meter low at 23:53. A 0.7 m/s current toward 346 degrees still matters when the surface looks sleepy. Pressure is a stable 1014 hPa; forecast rain is effectively none. Fishing’s 6.4 uses solunar timing, tide, pressure, wind, and available clarity. Major periods fall 07:24–09:24 into the morning low and 19:24–21:24 after the evening high, with a waxing gibbous moon rising at 16:17. Wildlife’s 6.7 is solunar, low-tide proximity, and wind—so that 10:49 low is the cleaner look, not a promise of anything moving. Versus yesterday, diving is essentially unchanged while fishing ticks up from 5.9; wildlife and surfing ease off. Coming days stay hot, with peak winds near 10–11.5 knots, rain chances rising from 18 percent tomorrow into the 40s and 50s, and waves still 0.3–0.5 meters. Best bet: get on the water early, while the harbor is still polite, and let the quiet morning do the work.