Alaska
Hump Island
Kuiukta Bay · Alaska · NOAA station 9458964 · Tide predictions
56.1133, -158.5980
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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
Last light, longer plans
Daylight calendar for King Salmon → Alaska Daylight · Northern lights forecast for King Salmon → Alaska Aurora Forecast
Nearby tide stations
- Castle Bay, Northwest Arm · 12.7 mi NE
- Chignik, Anchorage Bay · 14.8 mi NE
- Mitrofania Island · 17.7 mi SW
- Chankliut Island · 19.0 mi E
- Chiachi Island (east side) · 27.1 mi SW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 10.1 ft — Fri Jan 22 · 1:48 PM
Lowest predicted low tide: -2.8 ft — Sun Jul 4 · 9:39 AM
Biggest single-day swing: 12.0 ft on Fri Jan 22
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jul 4 | 9:39 AM | -2.8 ft |
| Mon Jul 5 | 10:24 AM | -2.7 ft |
| Sun Jun 6 | 10:37 AM | -2.7 ft |
| Sat Jun 5 | 9:51 AM | -2.7 ft |
| Sat Jul 3 | 8:53 AM | -2.5 ft |
| Mon Jun 7 | 11:25 AM | -2.4 ft |
| Fri Jun 4 | 9:06 AM | -2.3 ft |
| Tue Jul 6 | 11:09 AM | -2.3 ft |
| Mon Aug 2 | 9:22 AM | -2.3 ft |
| Sun Aug 1 | 8:38 AM | -2.2 ft |
174 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
Hump Island, Kuiukta Bay is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
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.