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 4h 14m at 5:20 am (1.1 ft)
Next high tide : 11:11 am (1.9 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 - Jan 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:154.05:333.412:54-0.72:183.19:545:46Waxing Crescent1Tue
2Wed9:224.07:282.71:350.03:372.39:535:47First Quarter2Wed
3Thu9:364.19:422.32:130.74:391.49:535:48First Quarter3Thu
4Fri9:544.32:431.55:330.79:535:49First Quarter4Fri
5Sat12:282.310:12 AM4.42:572.26:230.19:535:50First Quarter5Sat
6Sun10:304.57:09-0.29:525:51Waxing Gibbous6Sun
7Mon10:444.67:53-0.49:525:53Waxing Gibbous7Mon
8Tue10:534.78:35-0.59:525:54Waxing Gibbous8Tue
9Wed10:574.79:16-0.59:515:55Waxing Gibbous9Wed
10Thu11:014.79:56-0.59:505:57Full Moon10Thu
11Fri11:124.610:33-0.49:505:58Full Moon11Fri
12Sat11:274.511:08-0.39:495:59Full Moon12Sat
13Sun11:294.311:40-0.29:486:01Full Moon13Sun
14Mon10:504.09:486:02Waning Gibbous14Mon
15Tue10:143.812:090.19:476:04Waning Gibbous15Tue
16Wed9:463.612:350.49:466:06Waning Gibbous16Wed
17Thu9:173.512:560.89:456:07Waning Gibbous17Thu
18Fri8:573.69:202.01:091.34:501.79:446:09Third Quarter18Fri
19Sat8:473.812:561.85:041.19:436:10Third Quarter19Sat
20Sun8:474.25:320.49:426:12Third Quarter20Sun
21Mon8:594.66:08-0.19:416:14Third Quarter21Mon
22Tue9:235.06:50-0.69:406:15Waning Crescent22Tue
23Wed10:005.37:37-1.09:396:17Waning Crescent23Wed
24Thu10:465.58:26-1.29:376:19Waning Crescent24Thu
25Fri11:395.49:17-1.39:366:21New Moon25Fri
26Sat12:385.210:07-1.19:356:22New Moon26Sat
27Sun1:454.710:56-0.89:336:24New Moon27Sun
28Mon3:054.011:41-0.39:326:26Waxing Crescent28Mon
29Tue7:453.54:423.312:252.89:316:28Waxing Crescent29Tue
30Wed7:513.66:362.712:240.31:542.09:296:30Waxing Crescent30Wed
31Thu8:073.88:442.41:041.03:031.29:286:31Waxing 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 8:15 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 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