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Kelp Island Passage, Duke Island tide times

Alaska · NOAA station 9450142 · times in local time
Tuesday, October 27: high tide 1:54 AM (15.0 ft) and 1:43 PM (17.4 ft); low tide 7:39 AM (1.8 ft) and 8:23 PM (-2.9 ft).
next high tide
1:54 AM
15.0 ft
next low tide
7:39 AM
1.8 ft
moon
–
 

Tide chart — today, Tue, Oct 27

Heights in feet above Mean Lower Low Water (MLLW). Dots are NOAA's predicted highs and lows; the line between them is our interpolation. Shaded: night.

TideTimeHeight
High tide1:54 AM14.98 ft
Low tide7:39 AM1.78 ft
High tide1:43 PM17.43 ft
Low tide8:23 PM-2.94 ft

Kelp Island Passage, Duke Island tide table — next 7 days

DayHigh tidesLow tides
Today
Tue, Oct 27		1:54 AM 15.0 ft1:43 PM 17.4 ft7:39 AM 1.8 ft8:23 PM -2.9 ft
Tomorrow
Wed, Oct 28		2:39 AM 14.7 ft2:23 PM 17.2 ft8:19 AM 2.4 ft9:07 PM -2.6 ft
Thu, Oct 293:27 AM 14.1 ft3:07 PM 16.6 ft9:02 AM 3.2 ft9:56 PM -1.8 ft
Fri, Oct 304:19 AM 13.3 ft3:57 PM 15.5 ft9:52 AM 4.2 ft10:52 PM -0.7 ft
Sat, Oct 315:21 AM 12.5 ft4:57 PM 14.2 ft10:52 AM 5.1 ft11:58 PM 0.4 ft
Sun, Nov 15:33 AM 12.0 ft5:14 PM 13.0 ft11:12 AM 5.7 ft
Mon, Nov 26:51 AM 12.1 ft6:44 PM 12.3 ft12:12 AM 1.3 ft12:49 PM 5.4 ft

The year at Kelp Island Passage, Duke Island

Highest tide, next 12 months17.9 ft on December 24, 2026 at 12:15 PM
Lowest tide, next 12 months-4.2 ft on July 5, 2027 at 8:27 AM
Minus tides (below 0 ft)178 days in the next 12 months
Tide patternTwo high and two low tides a day
Typical daily range14.3 ft (30-day average)
StationNOAA 9450142 · subordinate station · 54.8767, -131.3

Kelp Island Passage, Duke Island is a subordinate station: NOAA computes its tides from Ketchikan with fixed time and height corrections.

Moving water at dawn and dusk —

The current runs fastest roughly halfway between a high and a low tide. Many anglers prefer those hours when they fall near sunrise or sunset. This is a rule of thumb, not a fishing forecast.

Map

Nearby tide stations

Morse Cove, Duke Island3.5 mi · AK Custom House Cove, Mary Island16 mi · AK Tamgas Harbor, Annette Island16 mi · AK Kah Shakes Cove17 mi · AK Metlakatla, Port Chester20 mi · AK Nakat Harbor, Alaska24 mi · AK Alva Bay, Revillagigedo Island25 mi · AK Boca de Quadra26 mi · AK

All Alaska tide stations →

Questions about Kelp Island Passage, Duke Island tides

What time is high tide at Kelp Island Passage, Duke Island today?

On Tuesday, October 27, high tide at Kelp Island Passage, Duke Island is at 1:54 AM (15.0 ft) and 1:43 PM (17.4 ft); low tide is at 7:39 AM (1.8 ft) and 8:23 PM (-2.9 ft) (AKDT, heights above MLLW). The table above lists the next 7 days.

When are the highest tides of the year at Kelp Island Passage, Duke Island?

The highest predicted tide in the next 12 months is 17.9 ft on December 24, 2026 at 12:15 PM. The largest tides fall a day or two after a full or new moon, especially when the Moon is closest to Earth.

Are there minus tides at Kelp Island Passage, Duke Island?

Yes — on 178 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -4.2 ft on July 5, 2027 at 8:27 AM. Minus tides expose the most shoreline, which is why tide-poolers look for them.

What time zone are these tide times in?

Station local time (AKDT at the time this page was built), with daylight saving time applied where the area observes it — the same convention as NOAA's own tide tables.

Where does this tide data come from?

From NOAA CO-OPS, the U.S. government tide station network (tidesandcurrents.noaa.gov); the predictions are public domain. Kelp Island Passage, Duke Island is a subordinate station: NOAA derives its times and heights from the reference station Ketchikan with fixed corrections. The curve between highs and lows is our interpolation. This page is not for navigation.