CatchWindow fishing intelligence

Seavey Island, ME Daily Water Report — August 28, 2026

Seavey Island is in good shape for a late-summer outing, though you'll want to pick your window carefully. Diving leads the pack today with a 7.5, closely followed by boating at 7.3 and fishing at 7.2 — all solidly above average. Surfing is a respectable 6.8, while kayaking and wildlife come in at 6.6 each. Sailing is the outlier at 5.3, and that's where the day's main tradeoff lies. The morning low tide at 6:09 exposes the shoreline just as the sun rises at 6:03 — ideal timing for wildlife or a shoreline walk before the flood picks up. Winds start light, around 1-2 knots from the southeast, and build through the morning to a representative 4 knots with gusts to 10. That's not enough to trouble a powerboat or a dive charter, but it's just enough to make a sailboat work for it. Waves are a consistent 0.5-0.8 meters from a 109-degree swell, and with a 6.9-second period, they're short and choppy rather than clean. That's why surfing scores lower than yesterday's 7.1 — the swell isn't organized enough for a proper ride. The real story is the water. Sea surface temperature is 19.4°C, a full 1.3°C above average for this date, and that warmth is fueling a heavy chlorophyll bloom at 8.57 mg/m³ — the highest reading in the "very high" category. For divers, that means visibility will be compromised despite calm surface conditions. The diving score of 7.5 is a solid "good" but not the excellent 7.6 we saw on August 26-27, and this bloom is likely why. The water is biologically rich but optically poor today. Fishing, on the other hand, gets a boost from the solunar major period from 11:45 to 1:45, which coincides with the high tide at 12:23 — a classic feeding window that pushes the score to 7.2, up from 6.6 yesterday. The outgoing tide from the 12:23 high to the 6:17 low aligns well with the rising afternoon pressure. The barometer is climbing from 1014 to 1017.7 hPa, which often means settling weather, and with no rain in the forecast, that's a green light for an extended session. The full moon rises at 7:30 p.m., just after sunset at 7:28, so the evening flood tide will be exaggerated — expect stronger currents than the tide tables alone suggest. That's fine for a boat but worth noting for a kayaker or paddleboarder who might try to fight it after dark. Compared to the past week, today is a step down from the glass-calm paradise of August 26, when boating hit 9.2 and kayaking 8.6 on 1.9-knot winds. But it's an improvement over yesterday's 5.7 for kayaking, which was the lowest of the week. The wind is stronger than that calm day but much lighter than any day with a thunderstorm threat. If you were out on the 26th, you were spoiled. Today is still a very good day, just not