CatchWindow fishing intelligence

Seldovia, AK Daily Water Report — August 27, 2026

Get on the water early and stay into the evening—today shapes up as the best all-around window Seldovia has seen in a while, with diving and boating leading the pack at strong suitability scores. The marine layer is thick, clouds locked at 100%, but don’t let that fool you into staying ashore. Winds are running a steady 8 knots from the south with gusts touching 18, which is enough to put a ruffle on the surface but nothing that’ll test your gear. Waves are averaging just 0.32 meters on a short 3.4-second period, with the calmest stretch around 19:00 dropping to 0.26 meters. That’s about as flat as it gets for this stretch of coast. The swell is negligible—0.22 meters out of the southwest—and wind waves are barely registering at 0.16 meters. Ocean currents are pushing 0.4 meters per second toward 243 degrees, so account for a gentle drift if you’re anchoring up for a halibut set. Fishing scores a 6.7, and the solunar periods are well-timed with a major window from 12:38 to 14:38 and a minor swing in the evening from 19:08 to 20:08. Pressure is falling slowly from 1016 hPa, which often coaxes fish into a more aggressive feed before a system fully settles in. The sea surface temperature is sitting at 12°C, a full 0.6 degrees above the long-term average for late August, and chlorophyll is elevated at 2.56 mg/m³. That green water isn’t a fish guarantee, but the conditions are set for a productive afternoon if you can time the tide correctly. Diving scores the highest today at 7.7, and the submerged visibility is favorable given the light wind and minimal wave action. The water is cool but not punishing, and the cloud cover keeps glare off the surface, making it easier to read the bottom. For paddlers, kayaking scores a 6.8. The southerly breeze will be noticeable on open stretches, but the wave heights are manageable. Stick to the lee side of the points if you want to keep dry. Boating scores a 7.6, and sailing a 7.0—the wind is consistent enough for a decent reach, but the gusts will keep you honest. Surfing is a 4.5 today, and honestly, the numbers back that up: short-period swell, light wind waves, and no real fetch to build anything worth paddling out for. The sun rises at 06:51 and sets at 21:29, with civil twilight stretching until 22:14, so you’ve got a solid 15 hours of usable light. The moon is a fat waxing gibbous at 98% illumination, rising at 21:04, which will throw some extra light on the water as you’re coming back in. The next few days shift gears. Friday brings a 100% chance of rain and peak winds near 15 knots, so Thursday is the clear winner. Saturday calms down again with lighter winds and only an 8% rain chance, then Sunday through Monday the wind builds back toward 17 knots and waves climb past a meter. If you’ve got a run to make or a dive planned, today