Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 1:36 pm (-0.2 ft)
Next high tide : in 2h 55m at 2:22 am (3.5 ft)
Sunset today : 9:39 pm
Sunrise tomorrow : 6:06 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Dec 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:104.611:21-1.09:315:39New Moon1Tue
2Wed3:104.49:325:39Waxing Crescent2Wed
3Thu9:094.14:204.112:13-1.012:383.89:345:38Waxing Crescent3Thu
4Fri9:294.15:373.61:04-0.82:123.49:355:38Waxing Crescent4Fri
5Sat9:554.17:013.21:53-0.53:302.89:365:37First Quarter5Sat
6Sun10:234.18:332.72:390.04:382.39:375:37First Quarter6Sun
7Mon10:504.110:152.43:220.65:391.79:395:36First Quarter7Mon
8Tue11:164.14:011.26:331.29:405:36First Quarter8Tue
9Wed12:152.311:37 AM4.04:321.87:220.89:415:36Waxing Gibbous9Wed
10Thu2:422.411:54 AM4.04:442.38:060.59:425:36Waxing Gibbous10Thu
11Fri12:044.08:460.39:435:35Waxing Gibbous11Fri
12Sat12:064.09:220.19:445:35Waxing Gibbous12Sat
13Sun11:554.19:560.09:455:35Full Moon13Sun
14Mon11:334.110:29-0.19:465:35Full Moon14Mon
15Tue11:154.211:03-0.19:475:35Full Moon15Tue
16Wed10:484.211:36-0.19:485:36Full Moon16Wed
17Thu10:284.19:495:36Waning Gibbous17Thu
18Fri10:254.112:10-0.19:495:36Waning Gibbous18Fri
19Sat10:264.012:420.09:505:36Waning Gibbous19Sat
20Sun10:233.91:130.29:515:37Waning Gibbous20Sun
21Mon10:143.81:430.59:515:37Third Quarter21Mon
22Tue10:083.88:132.22:090.85:452.19:525:38Third Quarter22Tue
23Wed10:093.910:342.02:301.35:531.69:525:38Third Quarter23Wed
24Thu10:184.22:401.76:221.09:525:39Waning Crescent24Thu
25Fri10:354.46:590.49:535:39Waning Crescent25Fri
26Sat11:004.77:43-0.29:535:40Waning Crescent26Sat
27Sun11:334.98:30-0.69:535:41Waning Crescent27Sun
28Mon12:145.09:20-0.99:535:42New Moon28Mon
29Tue1:025.010:11-1.09:545:43New Moon29Tue
30Wed1:574.711:02-0.99:545:44New Moon30Wed
31Thu2:574.411:53-0.89:545:45Waxing Crescent31Thu
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 7:59 am — 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 98% 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 Full Moon (98% 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