Know the Tide

Know the tide.

Alaska

Blue Fjord

Port Nellie Juan · Alaska · NOAA station 9454818 · Tide predictions

· Hawaii–Aleutian Time · Feet / MLLW (mean lower low water)

60.4917, -148.2420

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48-hour outlook

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

The next seven days

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H = high tide · L = low tide · highs & lows in local time

On the water nearby

Western Prince William Sound buoy · 21 mi N · Station 46081
Wind & wave reports →

Last light, longer plans
Daylight calendar for Seward → Alaska Daylight · Northern lights forecast for Seward → Alaska Aurora Forecast

Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 14.9 ft — Fri Jan 22 · 11:46 AM

Lowest predicted low tide: -3.3 ft — Mon Jul 5 · 7:04 AM

Biggest single-day swing: 18.0 ft on Fri Jan 22

Best daytime minus tides of 2027
DateLow tideHeight
Mon Jul 57:04 AM-3.3 ft
Sun Jun 67:18 AM-3.2 ft
Fri Jan 226:26 PM-3.1 ft
Tue Jul 67:50 AM-3.0 ft
Mon Jun 78:07 AM-2.9 ft
Thu Jan 215:42 PM-2.8 ft
Sat May 87:29 AM-2.7 ft
Tue Dec 146:55 PM-2.4 ft
Sat Feb 206:06 PM-2.4 ft
Wed Aug 47:26 AM-2.4 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

Blue Fjord, Port Nellie Juan 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.

Diurnal range12.2 ft
Mean range9.7 ft
RegionAlaska
NOAA chart16706
Station since1961