CatchWindow fishing intelligence

Eastport, ME Daily Water Report — August 28, 2026

A dirty marine layer has socked in Eastport this morning with visibility shrinking to a tenth of a kilometer, which makes this a waiting game for most water users, but divers and anglers have the strongest windows if they time the tide. Let’s start with what’s working. Diving scores a 7.5 out of 10, and that’s the top mark today, buoyed by a sea surface temperature reading of 16.3°C—a staggering 5.1 degrees above the long-term average for late August. That warmth is real, and it makes getting in the water genuinely comfortable compared to recent days. The catch: that 100% humidity and fog layer means surface conditions are gloomy, but underwater visibility can be a different story. The best dive window runs through the high tide slack at 11:47, when the 0.64-meter waves and light SSE breeze around 7 knots won’t stir up the bottom much. Fishing also holds at a solid 7 out of 10, timed well with the solunar major period from 12:30 to 14:30 aligning against the dropping afternoon tide. The falling barometer, now at 1018 hPa and trending down, often triggers a bite window before a change arrives. For boaters, today is a step down from yesterday’s 7.8 score, coming in at 6.1. The representative wind of 7 knots sounds manageable, but the sustained 100% overcast and the morning fog make navigation a heads-up affair. The calmest wave heights—around 0.52 meters near midnight—are long past by sunrise, and by midday you’re looking at 0.7-meter wind waves with a short 2.35-second period that’s more of a nuisance chop than a real threat. Sailing scores a 6.5, the best it’s been since the 7.2 on the 23rd, though the light and variable airs mean you’ll be working to keep the sails full. Surfing remains marginal at 5.8; the 0.5-meter south swell arriving every 3.9 seconds lacks the period to wrap cleanly into any break, and the onshore SSE wind won’t help with shape. Kayaking drops to 5.5, and the fog is the primary reason—paddling into that low visibility with boat traffic is not the relaxing glide it was on the 26th when conditions scored a 7.2. Wildlife observation at 6.4 is decent, and the very high chlorophyll reading of 5.08 mg/m³ indicates a rich plankton bloom, which often concentrates bait, but that’s a biological note, not a guarantee of surface action. Look for birds working the tide lines around the low at 18:02 for the most reliable viewing. Looking ahead, Friday brings clearing with temperatures climbing to 22°C and lighter waves around 0.4 to 0.5 meters—a much improved day across the board. Saturday introduces a 52% chance of rain with winds picking up near 12 knots, so that’s your caution day. Next Monday, September 1st, shapes up as the standout, with wave heights dropping to 0.2 to 0.4 meters and winds below 7 knots. Today’s best bet: get in the water around the