CatchWindow fishing intelligence

Charleston, OR Daily Water Report — October 4, 2026

Charleston gets a qualified green light today: fishing and diving lead the card, while boaters, sailors, and paddlers have workable but not carefree conditions. The sea state is relatively modest rather than flat, with waves around 1.3 m at 8.1 seconds and a northwest swell near 0.82 m. The day’s calmest wave height, about 1.06 m, arrives near 8 AM—useful timing, though it coincides with the morning high tide at 8:15 AM rather than a magic all-purpose window. For anglers, the strongest overlap is early, roughly 7:16–9:16 AM, when the major solunar period meets the high-water turn. A second major period runs 7:16–9:16 PM, just after the 7:05 PM high tide and into dusk. Fishing rates 7.4/10, helped by light northerly wind, rising pressure near 1017 hPa, and the tide timing used by the score. The afternoon minor period, 1:46–2:46 PM, follows the 1:08 PM low, but it is a smaller opportunity. Diving earns 7.5/10, tied with yesterday and just below the reconstructed 7.7/10 on October 2. Winds are generally 4.7–8.8 knots, though early gusts reached about 14.8 knots around 5 AM. Water is cold enough to demand proper exposure protection: marine SST is 13 C, while the supplied SST reading is 14.6 C. Do not confuse the reported 10 km atmospheric visibility with underwater visibility; none is supplied. Boating and sailing both sit at 6.8/10, with kayaking at 6.3/10. The light wind is favorable, but the 1.1–1.3 m wave range and short wind-wave component mean small craft should treat the morning’s lower seas as a convenience, not a safety guarantee. Cloud cover is complete, the air is only 12.5–14.8 C, and no rain window is indicated—dry, but not exactly postcard-bright. Compared with the recent record, today is windier than the notably calm October 2, when boating and kayaking scored better, but it holds steadier diving conditions than several earlier days. The next two days stay near 1.3–1.6 m waves; seas then build toward 2.0–2.1 m on October 8. Best bet: fish the 7:16–9:16 AM major period around the morning high, then let the rising pressure and modest sea state do the talking.