Morse Cove, Duke Island tide predictions
54.9200, -131.2550 · NOAA station 9450172
Full daylight calendar for the Ketchikan area → Alaska Daylight · Northern lights forecast for Ketchikan → Alaska Aurora Forecast
Nearest buoy: Central Dixon Entrance Buoy · 60 mi SW — live wind & wave reports
Tide now
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
7-day tides
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H = high tide · L = low tide
About this station
NOAA builds the predictions for Morse Cove, Duke Island from the Ketchikan station: high tides about 0.96× the height, 3 min later; low tides about 0.96× the height, 15 min later.
Inside Passage waters are sheltered, but the ranges are real: 15 to 20 ft swings are routine, and narrow channels run strong tidal currents on the change. Out here, rain and channel weather matter more than ice.
2027 tide extremes
Highest predicted high tide: 18.2 ft — Sat Jan 23 · 1:06 PM
Lowest predicted low tide: -4.2 ft — Mon Jul 5 · 8:39 AM
Biggest single-day swing: 22.0 ft on Sat Jan 23
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jul 5 | 8:39 AM | -4.2 ft |
| Tue Aug 3 | 8:19 AM | -4.0 ft |
| Tue Jul 6 | 9:23 AM | -3.9 ft |
| Sun Jul 4 | 7:53 AM | -3.8 ft |
| Sun Jun 6 | 8:52 AM | -3.7 ft |
| Mon Aug 2 | 7:37 AM | -3.7 ft |
| Wed Aug 4 | 9:00 AM | -3.6 ft |
| Sat Jun 5 | 8:06 AM | -3.5 ft |
| Mon Jun 7 | 9:39 AM | -3.5 ft |
| Thu Jan 21 | 6:17 PM | -3.2 ft |
199 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
Nearest tide stations
- Kelp Island Passage, Duke Island · 3.5 mi SW
- Custom House Cove, Mary Island · 12.5 mi N
- Kah Shakes Cove · 13.8 mi NE
- Tamgas Harbor, Annette Island · 15.2 mi NW
- Metlakatla, Port Chester · 19.0 mi NW