Alaska
Mitrofania Island
Alaska · NOAA station 9459016 · Tide predictions
55.8900, -158.8200
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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
- Chiachi Island (east side) · 11.5 mi W
- Hump Island, Kuiukta Bay · 17.7 mi NE
- Kupreanof Harbor, Paul Island · 21.7 mi W
- Ivanof Bay · 26.0 mi W
- Castle Bay, Northwest Arm · 29.8 mi NE
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 9.4 ft — Fri Jan 22 · 1:46 PM
Lowest predicted low tide: -2.4 ft — Sun Jul 4 · 9:35 AM
Biggest single-day swing: 11.8 ft on Sun Jul 4
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jul 4 | 9:35 AM | -2.4 ft |
| Mon Jul 5 | 10:20 AM | -2.4 ft |
| Sat Jun 5 | 9:47 AM | -2.3 ft |
| Sun Jun 6 | 10:34 AM | -2.3 ft |
| Sat Jul 3 | 8:50 AM | -2.2 ft |
| Mon Aug 2 | 9:18 AM | -2.1 ft |
| Mon Jun 7 | 11:21 AM | -2.0 ft |
| Fri Jun 4 | 9:02 AM | -2.0 ft |
| Tue Jul 6 | 11:05 AM | -2.0 ft |
| Sun Aug 1 | 8:34 AM | -1.9 ft |
181 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
Mitrofania Island 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.