Morse Cove, Duke Island, AK Tide Chart Today & Tomorrow

NOAA tide station 9450172 · Alaska · updated Nov 12, 2026

Fri, Nov 13: High tide 3:00 AM (12.6 ft) and 2:21 PM (14.4 ft); low tide 8:34 AM (5.2 ft) and 9:17 PM (0.9 ft).

Tide todayHigh 3:00 AM · High 2:21 PMLow 8:34 AM · Low 9:17 PM

Today's range13.5 ft0.9 → 14.4 ft (MLLW)

WindLoading…

Sun7:13 AM – 3:44 PMFirst light 6:32 AM · Last light 4:25 PM

Wind: observed at NOAA NDBC station MRYA2 (Mary Island, AK), 13 mi away; forecast from the NOAA National Weather Service (api.weather.gov).

Morse Cove, Duke Island tides — next 3 days

Shaded = night · heights in feet above MLLW · local time

YesterdayThu, Nov 12

High 2:22 AM 13.2 ft
Low 7:58 AM 4.6 ft
High 1:46 PM 15.1 ft
Low 8:38 PM 0.1 ft

First light 6:30 AMSunrise 7:11 AMSunset 3:46 PMLast light 4:27 PM

TodayFri, Nov 13

High 3:00 AM 12.6 ft
Low 8:34 AM 5.2 ft
High 2:21 PM 14.4 ft
Low 9:17 PM 0.9 ft

First light 6:32 AMSunrise 7:13 AMSunset 3:44 PMLast light 4:25 PM

TomorrowSat, Nov 14

High 3:43 AM 12.0 ft
Low 9:15 AM 5.8 ft
High 3:01 PM 13.5 ft
Low 10:00 PM 1.7 ft

First light 6:34 AMSunrise 7:15 AMSunset 3:42 PMLast light 4:24 PM

SundaySun, Nov 15

High 4:33 AM 11.4 ft
Low 10:06 AM 6.3 ft
High 3:49 PM 12.5 ft
Low 10:51 PM 2.5 ft

First light 6:35 AMSunrise 7:17 AMSunset 3:41 PMLast light 4:22 PM

MondayMon, Nov 16

High 5:31 AM 11.2 ft
Low 11:13 AM 6.6 ft
High 4:49 PM 11.7 ft
Low 11:49 PM 3.0 ft

First light 6:37 AMSunrise 7:19 AMSunset 3:39 PMLast light 4:21 PM

Best fishing times today in Morse Cove, Duke Island

Today is a good fishing day (solunar + tide)

7/10

Waxing crescent · 17% lit · Full moon Tue, Nov 24

Major fishing times

Moon underfoot1:49 am – 3:49 am
↻ Tide change: high 3:00 am
Moon overhead2:13 pm – 4:13 pm
Sunset↻ Tide change: high 2:21 pm

Minor fishing times

Moonrise11:37 am – 12:37 pm
≈ Moving water, rising
Moonset5:55 pm – 6:55 pm
≈ Moving water, falling

Fishing times for the next 7 days

TodayNov 13	7/10Good	Major 1:49 am – 3:49 am · 2:13 pm – 4:13 pm Minor 11:37 am – 12:37 pm · 5:55 pm – 6:55 pm
SatNov 14	5/10Fair	Major 2:38 am – 4:38 am · 3:02 pm – 5:02 pm Minor 12:02 pm – 1:02 pm · 7:10 pm – 8:10 pm
SunNov 15	7/10Good	Major 3:25 am – 5:25 am · 3:48 pm – 5:48 pm Minor 12:19 pm – 1:19 pm · 8:28 pm – 9:28 pm
MonNov 16	7/10Good	Major 4:10 am – 6:10 am · 4:32 pm – 6:32 pm Minor 12:31 pm – 1:31 pm · 9:46 pm – 10:46 pm
TueNov 17	7/10Good	Major 4:54 am – 6:54 am · 5:15 pm – 7:15 pm Minor 12:41 pm – 1:41 pm · 11:04 pm – 12:04 am
WedNov 18	7/10Good	Major 5:36 am – 7:36 am · 5:58 pm – 7:58 pm Minor 12:49 pm – 1:49 pm
ThuNov 19	5/10Fair	Major 6:19 am – 8:19 am · 6:41 pm – 8:41 pm Minor 12:24 am – 1:24 am · 12:57 pm – 1:57 pm

How this rating works

Solunar theory says fish feed more when the moon is overhead or underfoot (major periods, about 2 hours) and around moonrise and moonset (minor periods, about 1 hour). We score each day from 1 to 10 by checking when those periods happen, using the NOAA tide predictions for station 9450172 and the sun times for this spot:

Base	every day starts at 1	1
Sunrise / sunset	a period overlaps sunrise or sunset ±1 h: major +2, minor +1 (max 3) (Moon overhead × sunset +2)	2
Tide	a NOAA high or low falls inside a period (tide change): major +2, minor +1; moving water during a major period (no high/low within 1 h of it) +1 (max 4) (Moon underfoot – tide change +2; Moon overhead – tide change +2)	4
Moon phase	within 2 days of a new or full moon +2, within 4 days +1 (today: 4.4 days)	0
Today	7, rounded	7/10

1–3 poor · 4–5 fair · 6–7 good · 8–10 excellent. Solunar times are a rule of thumb, not a guarantee: weather, water temperature and bait matter a lot. Tide changes and moving water are specific to this station, so nearby spots can score differently.

Solunar periods calculated for 54.92, -131.25 (moon times from astronomical equations, local time). Not a fishing forecast.

Best fishing times today in Morse Cove, Duke Island

Today is a good fishing day (solunar + tide)

6/10

Waxing crescent · 11% lit · Full moon Tue, Nov 24

Major fishing times

Moon underfoot12:57 am – 2:57 am
Moon overhead1:23 pm – 3:23 pm
Sunset↻ Tide change: high 1:46 pm

Minor fishing times

Moonrise11:00 am – 12:00 pm
≈ Moving water, rising
Moonset4:48 pm – 5:48 pm
≈ Moving water, falling

Fishing times for the next 7 days

TodayNov 12	6/10Good	Major 12:57 am – 2:57 am · 1:23 pm – 3:23 pm Minor 11:00 am – 12:00 pm · 4:48 pm – 5:48 pm
FriNov 13	7/10Good	Major 1:49 am – 3:49 am · 2:13 pm – 4:13 pm Minor 11:37 am – 12:37 pm · 5:55 pm – 6:55 pm
SatNov 14	5/10Fair	Major 2:38 am – 4:38 am · 3:02 pm – 5:02 pm Minor 12:02 pm – 1:02 pm · 7:10 pm – 8:10 pm
SunNov 15	7/10Good	Major 3:25 am – 5:25 am · 3:48 pm – 5:48 pm Minor 12:19 pm – 1:19 pm · 8:28 pm – 9:28 pm
MonNov 16	7/10Good	Major 4:10 am – 6:10 am · 4:32 pm – 6:32 pm Minor 12:31 pm – 1:31 pm · 9:46 pm – 10:46 pm
TueNov 17	7/10Good	Major 4:54 am – 6:54 am · 5:15 pm – 7:15 pm Minor 12:41 pm – 1:41 pm · 11:04 pm – 12:04 am
WedNov 18	7/10Good	Major 5:36 am – 7:36 am · 5:58 pm – 7:58 pm Minor 12:49 pm – 1:49 pm

How this rating works

Base	every day starts at 1	1
Sunrise / sunset	a period overlaps sunrise or sunset ±1 h: major +2, minor +1 (max 3) (Moon overhead × sunset +2)	2
Tide	a NOAA high or low falls inside a period (tide change): major +2, minor +1; moving water during a major period (no high/low within 1 h of it) +1 (max 4) (Moon overhead – tide change +2)	2
Moon phase	within 2 days of a new or full moon +2, within 4 days +1 (today: 3.4 days)	1
Today	6, rounded	6/10

Solunar periods calculated for 54.92, -131.25 (moon times from astronomical equations, local time). Not a fishing forecast.

Morse Cove, Duke Island tide table — next 7 days

Thu, Nov 12	High 2:22 AM 13.23 ft	Low 7:58 AM 4.60 ft	High 1:46 PM 15.13 ft	Low 8:38 PM 0.11 ft
Fri, Nov 13	High 3:00 AM 12.62 ft	Low 8:34 AM 5.22 ft	High 2:21 PM 14.37 ft	Low 9:17 PM 0.92 ft
Sat, Nov 14	High 3:43 AM 11.98 ft	Low 9:15 AM 5.83 ft	High 3:01 PM 13.49 ft	Low 10:00 PM 1.73 ft
Sun, Nov 15	High 4:33 AM 11.45 ft	Low 10:06 AM 6.35 ft	High 3:49 PM 12.54 ft	Low 10:51 PM 2.46 ft
Mon, Nov 16	High 5:31 AM 11.20 ft	Low 11:13 AM 6.60 ft	High 4:49 PM 11.66 ft	Low 11:49 PM 3.00 ft
Tue, Nov 17	High 6:34 AM 11.39 ft	Low 12:36 PM 6.30 ft	High 6:05 PM 11.08 ft
Wed, Nov 18	Low 12:52 AM 3.29 ft	High 7:32 AM 12.01 ft	Low 1:52 PM 5.32 ft	High 7:24 PM 11.04 ft
Thu, Nov 19	Low 1:52 AM 3.35 ft	High 8:21 AM 12.95 ft	Low 2:53 PM 3.84 ft	High 8:35 PM 11.51 ft
Fri, Nov 20	Low 2:46 AM 3.27 ft	High 9:03 AM 14.06 ft	Low 3:43 PM 2.12 ft	High 9:35 PM 12.30 ft

Times are local (standard/daylight). Heights in feet above MLLW.

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About the tide at Morse Cove, Duke Island

Its predictions are NOAA time and height offsets from reference station Ketchikan (9450460, 32 mi northwest).

Morse Cove, Duke Island has a semidiurnal tide: two high tides and two low tides of similar height each day. The average rise or fall between high and low tide is 12.1 ft, growing to about 18.8 ft at spring tides (around new and full moon) and shrinking to about 9.6 ft at neap tides (around the quarter moons). The highest tide predicted in the next 12 months is 18.3 ft on December 24, 2026 at 12:22 PM; the lowest is -4.2 ft on July 5, 2027 at 8:39 AM, and 196 low tides in that period drop below zero (MLLW).

Tide type: Semidiurnal
Mean range: 12.1 ft
Spring / neap range: 18.8 ft / 9.6 ft
Average higher high: 14.7 ft
Average lower low: 0.2 ft
Highest tide, next 12 months: 18.3 ft · Dec 24, 2026
Lowest tide, next 12 months: -4.2 ft · Jul 5, 2027
Negative low tides (12 months): 196

This week

From Fri, Nov 13 to Thu, Nov 19, high tides at Morse Cove, Duke Island range from 11.0 ft to 14.4 ft; the biggest is on Fri, Nov 13 at 2:21 PM. The lowest low is 0.9 ft on Fri, Nov 13 at 9:17 PM. Low tides in daylight (sunrise to sunset): Fri 8:34 AM (5.2 ft); Sat 9:15 AM (5.8 ft); Sun 10:06 AM (6.3 ft); Mon 11:13 AM (6.6 ft); Tue 12:36 PM (6.3 ft); Wed 1:52 PM (5.3 ft); Thu 2:53 PM (3.8 ft).

Tide statistics computed from NOAA high/low predictions for Oct 2026 – Oct 2027; heights in feet above MLLW. Predictions are astronomical and do not include weather.

Gear for Morse Cove, Duke Island

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Nearby tide stations

Kelp Island Passage, Duke Island, AK 3.5 mi southwest
Custom House Cove, Mary Island, AK 12.5 mi north
Kah Shakes Cove, AK 13.8 mi northeast
Tamgas Harbor, Annette Island, AK 15.2 mi northwest
Metlakatla, Port Chester, AK 19.0 mi northwest
Alva Bay, Revillagigedo Island, AK 21.8 mi north
Boca De Quadra, AK 22.6 mi northeast
Nakat Harbor, Alaska, AK 23.1 mi east

About this station

NOAA station ID: 9450172
Type: Subordinate station (offsets from NOAA station 9450460)
Coordinates: 54.9200, -131.2550
Datum: MLLW (feet)
Time zone: America/Anchorage

FAQ

When is high tide today at Morse Cove, Duke Island, AK?

On Fri, Nov 13, predicted high tide at Morse Cove, Duke Island, AK is at 3:00 AM, 2:21 PM local time.

When is low tide today at Morse Cove, Duke Island, AK?

On Fri, Nov 13, predicted low tide at Morse Cove, Duke Island, AK is at 8:34 AM, 9:17 PM local time.

When are high and low tide tomorrow at Morse Cove, Duke Island, AK?

On Sat, Nov 14, predicted high tides are at 3:43 AM (12.0 ft) and 3:01 PM (13.5 ft); low tides are at 9:15 AM (5.8 ft) and 10:00 PM (1.7 ft) (local time).

What is the tide range at Morse Cove, Duke Island, AK?

The average range between high and low tide is 12.1 ft; about 18.8 ft at spring tides and 9.6 ft at neap tides. The highest tide predicted in the next 12 months is 18.3 ft on December 24, 2026 (NOAA predictions, MLLW).

Where does this tide data come from?

Predictions come from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS), station 9450172. Heights are in feet relative to Mean Lower Low Water (MLLW).