Unalaska tide predictions
53.8792, -166.5403 · NOAA station 9462620
Full daylight calendar for the Unalaska / Dutch Harbor area → Alaska Daylight · Northern lights forecast for Unalaska / Dutch Harbor → Alaska Aurora Forecast
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
Unalaska 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.
Ranges shrink as you head down the chain, but the passes between islands rip hard on the change, and weather calls the shots year-round. Wind can hold water in or blow it out far beyond what the table says.
2027 tide extremes
Highest predicted high tide: 5.0 ft — Wed Jan 20 · 1:53 PM
Lowest predicted low tide: -1.5 ft — Sun Jun 6 · 2:09 PM
Biggest single-day swing: 6.2 ft on Wed Jan 20
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jun 6 | 2:09 PM | -1.5 ft |
| Sat Jun 5 | 1:16 PM | -1.5 ft |
| Sun Jul 4 | 12:54 PM | -1.5 ft |
| Sat Jul 3 | 12:02 PM | -1.5 ft |
| Mon Jun 7 | 3:03 PM | -1.4 ft |
| Sun May 9 | 3:28 PM | -1.4 ft |
| Mon May 10 | 4:24 PM | -1.4 ft |
| Mon Jul 5 | 1:46 PM | -1.4 ft |
| Fri Jun 4 | 12:24 PM | -1.3 ft |
| Sat May 8 | 2:32 PM | -1.3 ft |
219 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
- Dutch Harbor, Amaknak Island · 0.9 mi N
- Kisselen Bay, Beaver Inlet · 11.5 mi S
- English Bay · 12.0 mi E
- Udamat Bay, Sedanka Island · 13.7 mi E
- Udagak Strait · 14.0 mi SE