Alaska
Shakan Strait
Kosciusko Island · Alaska · NOAA station 9450987 · Tide predictions
56.1483, -133.4600
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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.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Cape Edgecumbe buoy · 104 mi W · Station 46084
Wind & wave reports →
Last light, longer plans
Daylight calendar for Wrangell → Alaska Daylight · Northern lights forecast for Wrangell → Alaska Aurora Forecast
Nearby tide stations
- El Capitan Passage, Dry Pass · 2.1 mi NE
- El Capitan Passage, W. of Aneskett Pt. · 5.1 mi E
- Shakan Bay Entrance · 5.8 mi W
- El Capitan Passage, S. of Devilfish Bay · 7.7 mi SE
- Port Protection, Prince of Wales Island. · 12.3 mi NW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 14.2 ft — Fri Jan 22 · 12:01 PM
Lowest predicted low tide: -3.0 ft — Mon Jul 5 · 8:27 AM
Biggest single-day swing: 16.7 ft on Fri Jan 22
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jul 5 | 8:27 AM | -3.0 ft |
| Sun Jul 4 | 7:41 AM | -2.9 ft |
| Sun Jun 6 | 8:40 AM | -2.8 ft |
| Tue Jul 6 | 9:11 AM | -2.8 ft |
| Sat Jun 5 | 7:54 AM | -2.7 ft |
| Mon Jun 7 | 9:28 AM | -2.7 ft |
| Tue Aug 3 | 8:06 AM | -2.6 ft |
| Mon Aug 2 | 7:23 AM | -2.6 ft |
| Fri Jan 22 | 6:47 PM | -2.4 ft |
| Fri Jun 4 | 7:08 AM | -2.2 ft |
180 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.
About this station
NOAA builds the predictions for Shakan Strait, Kosciusko Island from the Sitka station: high tides about 1.16× the height, 7 min earlier; low tides about 0.95× the height, 10 min earlier.
Alaska holds the country's most extreme tides: Inside Passage channels, Cook Inlet swings past 30 ft, and Arctic stations where the tide is measured in inches and wind setup runs the show.