Know the Tide

Know the tide.

Alaska

Swanson Harbor

Alaska · NOAA station 9452368 · Tide predictions

· Alaska Time · Feet / MLLW (mean lower low water)

58.2150, -135.1270

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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

Fairweather Ground buoy · 105 mi W · Station 46083
Wind & wave reports →

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

Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 19.4 ft — Fri Jan 22 · 12:29 PM

Lowest predicted low tide: -3.5 ft — Mon Jul 5 · 8:51 AM

Biggest single-day swing: 22.3 ft on Fri Jan 22

Best daytime minus tides of 2027
DateLow tideHeight
Mon Jul 58:51 AM-3.5 ft
Sun Jul 48:05 AM-3.3 ft
Tue Jul 69:35 AM-3.3 ft
Sun Jun 69:04 AM-3.2 ft
Tue Aug 38:30 AM-3.2 ft
Sat Jun 58:17 AM-3.1 ft
Mon Aug 27:48 AM-3.1 ft
Mon Jun 79:52 AM-3.0 ft
Sat Jul 37:18 AM-2.8 ft
Wed Aug 49:11 AM-2.8 ft

186 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

NOAA builds the predictions for Swanson Harbor from the Elfin Cove, Port Althorp station: high tides about 1.41× the height, 14 min later; low tides about 1.08× the height, 11 min later.

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 range15.3 ft
Mean range12.7 ft
RegionAlaska
NOAA chart17316
Station since1901