Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 30m at 1:36 pm (-0.2 ft)
Next high tide : 11:43 pm (3.1 ft)
Sunset today : 9:37 pm
Sunrise tomorrow : 6:08 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Dec 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:483.91:14-0.19:315:39Waning Gibbous1Mon
2Tue10:393.81:480.19:335:39Third Quarter2Tue
3Wed10:313.87:252.52:210.45:202.59:345:38Third Quarter3Wed
4Thu10:313.89:402.22:520.85:381.99:355:37Third Quarter4Thu
5Fri10:404.011:502.13:191.36:151.29:375:37Waning Crescent5Fri
6Sat10:574.33:381.86:580.69:385:37Waning Crescent6Sat
7Sun11:204.57:450.09:395:36Waning Crescent7Sun
8Mon11:504.78:34-0.59:405:36Waning Crescent8Mon
9Tue12:254.99:25-0.89:415:36New Moon9Tue
10Wed1:064.810:17-1.09:425:36New Moon10Wed
11Thu1:534.611:08-1.09:435:35New Moon11Thu
12Fri2:464.311:57-0.89:445:35Waxing Crescent12Fri
13Sat8:574.13:473.912:403.89:455:35Waxing Crescent13Sat
14Sun9:174.14:583.512:45-0.62:213.49:465:35Waxing Crescent14Sun
15Mon9:404.16:183.01:29-0.23:372.99:475:35Waxing Crescent15Mon
16Tue10:044.07:492.62:100.34:382.49:485:36First Quarter16Tue
17Wed10:254.09:332.32:460.85:291.99:495:36First Quarter17Wed
18Thu10:434.011:432.13:171.36:131.49:495:36First Quarter18Thu
19Fri10:574.03:351.96:531.09:505:36First Quarter19Fri
20Sat11:074.07:290.79:515:37Waxing Gibbous20Sat
21Sun11:144.18:040.49:515:37Waxing Gibbous21Sun
22Mon11:184.28:370.29:525:38Waxing Gibbous22Mon
23Tue11:214.39:110.09:525:38Waxing Gibbous23Tue
24Wed11:264.49:46-0.19:535:39Full Moon24Wed
25Thu11:364.410:21-0.29:535:40Full Moon25Thu
26Fri11:504.410:56-0.29:535:40Full Moon26Fri
27Sat11:544.211:32-0.29:535:41Full Moon27Sat
28Sun10:404.19:535:42Waning Gibbous28Sun
29Mon10:013.912:07-0.19:545:43Waning Gibbous29Mon
30Tue9:373.812:410.19:545:44Waning Gibbous30Tue
31Wed9:233.81:140.49:545:45Third Quarter31Wed
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 6:39 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 spring phase. Tonight's moon is 95% 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 near their weekly maximum.

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 Waning Gibbous (95% illuminated). This places Adak Island, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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