Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 4h 39m at 8:31 am (-0.3 ft)
Next high tide : 11:56 pm (3.9 ft)
Sunset today : 9:49 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Feb 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:134.111:162.51:241.83:520.49:256:34First Quarter1Mon
2Tue8:404.41:492.44:48-0.29:246:36First Quarter2Tue
3Wed9:114.65:41-0.69:226:38First Quarter3Wed
4Thu9:454.76:33-0.79:216:39Waxing Gibbous4Thu
5Fri10:214.77:24-0.79:196:41Waxing Gibbous5Fri
6Sat10:554.68:14-0.69:176:43Waxing Gibbous6Sat
7Sun11:284.49:01-0.59:166:45Waxing Gibbous7Sun
8Mon11:574.29:45-0.39:146:47Full Moon8Mon
9Tue12:203.910:240.09:126:49Full Moon9Tue
10Wed12:333.510:580.39:106:51Full Moon10Wed
11Thu8:423.211:270.69:086:52Full Moon11Thu
12Fri8:153.111:541.09:066:54Waning Gibbous12Fri
13Sat7:503.05:572.32:202.19:056:56Waning Gibbous13Sat
14Sun7:313.18:202.212:171.52:471.69:036:58Waning Gibbous14Sun
15Mon7:243.212:332.03:181.29:017:00Waning Gibbous15Mon
16Tue7:253.53:520.78:597:02Third Quarter16Tue
17Wed7:333.74:280.38:577:03Third Quarter17Wed
18Thu7:484.15:070.08:557:05Third Quarter18Thu
19Fri8:154.45:49-0.38:537:07Third Quarter19Fri
20Sat8:534.66:32-0.58:517:09Waning Crescent20Sat
21Sun9:404.77:17-0.78:497:11Waning Crescent21Sun
22Mon10:334.78:02-0.78:477:13Waning Crescent22Mon
23Tue11:324.58:46-0.68:447:14New Moon23Tue
24Wed12:434.19:31-0.28:427:16New Moon24Wed
25Thu5:582.72:103.68:212.710:140.38:407:18New Moon25Thu
26Fri5:322.83:573.010:302.110:570.98:387:20New Moon26Fri
27Sat5:403.15:582.712:001.38:367:22Waxing Crescent27Sat
28Sun6:013.48:082.71:120.68:347:23Waxing Crescent28Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

Show All
What time does the tide turn (slack tide) in Adak Island, AK today?

Slack tide in Adak Island, AK is approximately 4:13 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Adak Island, AK?

Adak Island, AK is currently in a transitional phase. Tonight's moon is 73% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Adak Island, AK tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Adak Island, AK?

Tide predictions for Adak Island, AK come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Adak Island, AK?

Tide data for Adak Island, AK is sourced from NOAA Station #9461380. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9461380.

What is the moon phase in Adak Island, AK tonight?

Tonight the moon over Adak Island, AK is Waxing Gibbous (73% illuminated). This places Adak Island, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA