Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 1h 50m at 2:36 pm (1.7 ft)
Next high tide : 10:00 pm (3.4 ft)
Sunset today : 9:30 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (63% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Dec 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:573.92:23-0.29:315:39Third Quarter1Fri
2Sat11:363.72:520.29:325:39Third Quarter2Sat
3Sun11:143.69:122.13:150.66:382.19:345:38Third Quarter3Sun
4Mon11:023.83:271.26:491.39:355:38Waning Crescent4Mon
5Tue12:252.011:01 AM4.13:071.97:220.59:365:37Waning Crescent5Tue
6Wed11:104.58:04-0.39:385:37Waning Crescent6Wed
7Thu11:295.08:51-0.99:395:36New Moon7Thu
8Fri11:585.39:41-1.49:405:36New Moon8Fri
9Sat12:385.410:34-1.69:415:36New Moon9Sat
10Sun1:265.311:28-1.69:425:36New Moon10Sun
11Mon2:235.09:435:35Waxing Crescent11Mon
12Tue3:304.612:20-1.59:445:35Waxing Crescent12Tue
13Wed10:164.34:484.01:11-1.22:163.99:455:35Waxing Crescent13Wed
14Thu10:254.16:183.31:57-0.73:473.29:465:35First Quarter14Thu
15Fri10:404.08:032.72:40-0.14:572.59:475:35First Quarter15Fri
16Sat10:544.010:092.23:160.65:541.89:485:36First Quarter16Sat
17Sun11:074.03:451.36:421.19:495:36First Quarter17Sun
18Mon1:002.111:15 AM4.03:522.07:240.69:495:36Waxing Gibbous18Mon
19Tue11:164.18:010.29:505:36Waxing Gibbous19Tue
20Wed11:094.28:36-0.19:515:37Waxing Gibbous20Wed
21Thu10:534.49:10-0.39:515:37Waxing Gibbous21Thu
22Fri10:394.69:45-0.49:525:38Full Moon22Fri
23Sat10:434.810:20-0.59:525:38Full Moon23Sat
24Sun11:004.810:57-0.59:535:39Full Moon24Sun
25Mon11:184.811:34-0.59:535:40Full Moon25Mon
26Tue11:294.79:535:40Waning Gibbous26Tue
27Wed11:264.512:09-0.59:535:41Waning Gibbous27Wed
28Thu11:144.212:42-0.49:535:42Waning Gibbous28Thu
29Fri10:544.01:12-0.29:545:43Waning Gibbous29Fri
30Sat10:243.81:380.29:545:44Third Quarter30Sat
31Sun10:003.88:502.01:580.85:301.99:545:45Third Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

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

Slack tide in Adak Island, AK is approximately 6:18 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 63% 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 Third Quarter (63% 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