Alaska Tide Charts Feet

Know the water. Fish the tide.

Nikolski tide predictions

52.9406, -168.8713 · NOAA station 9462450

Full daylight calendar for the Unalaska / Dutch Harbor area → Alaska Daylight · Northern lights forecast for Unalaska / Dutch Harbor → Alaska Aurora Forecast

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48-hour outlook

Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.

7-day tides

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H = high tide · L = low tide

About this station

Nikolski 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.

Diurnal range4.0 ft
Mean range2.7 ft
RegionAleutian Islands & Alaska Peninsula
NOAA chart16511
Station since2006

2027 tide extremes

Highest predicted high tide: 5.6 ft — Wed Jan 20 · 12:21 PM

Lowest predicted low tide: -1.8 ft — Sun Jul 4 · 11:36 AM

Biggest single-day swing: 6.9 ft on Wed Jan 20

Best daytime minus tides of 2027

DateLow tideHeight
Sun Jul 411:36 AM-1.8 ft
Sun Jun 612:48 PM-1.8 ft
Sat Jul 310:45 AM-1.7 ft
Mon Jul 512:28 PM-1.7 ft
Sat Jun 511:55 AM-1.7 ft
Mon Jun 71:41 PM-1.7 ft
Sun Aug 110:24 AM-1.5 ft
Fri Jul 29:55 AM-1.5 ft
Fri Jun 411:04 AM-1.5 ft
Sat Jul 319:33 AM-1.4 ft

223 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