Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 13m at 3:26 am (1.4 ft)
Next high tide : 8:47 am (2.4 ft)
Sunset today : 9:07 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Mar 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:204.56:19-0.98:016:56Waning Crescent1Tue
2Wed10:094.47:12-0.87:596:58Waning Crescent2Wed
3Thu10:584.28:03-0.57:567:00Waning Crescent3Thu
4Fri11:463.98:52-0.27:547:01Waning Crescent4Fri
5Sat12:363.59:360.17:527:03New Moon5Sat
6Sun6:282.91:363.19:102.810:160.57:507:05New Moon6Sun
7Mon6:252.72:592.610:512.410:521.07:477:07New Moon7Mon
8Tue6:162.74:502.412:002.07:457:09New Moon8Tue
9Wed6:052.77:082.312:471.57:437:10Waxing Crescent9Wed
10Thu5:592.89:342.51:261.07:417:12Waxing Crescent10Thu
11Fri5:593.012:242.42:040.77:387:14Waxing Crescent11Fri
12Sat6:043.22:430.37:367:16Waxing Crescent12Sat
13Sun6:133.43:240.17:347:17First Quarter13Sun
14Mon6:333.64:06-0.17:317:19First Quarter14Mon
15Tue7:063.84:50-0.37:297:21First Quarter15Tue
16Wed7:504.05:34-0.47:277:22First Quarter16Wed
17Thu8:404.16:17-0.57:257:24Waxing Gibbous17Thu
18Fri9:364.07:00-0.47:227:26Waxing Gibbous18Fri
19Sat10:393.87:41-0.27:207:28Waxing Gibbous19Sat
20Sun11:563.58:210.17:187:29Full Moon20Sun
21Mon4:062.41:333.07:472.29:010.77:157:31Full Moon21Mon
22Tue3:482.53:302.79:321.69:411.37:137:33Full Moon22Tue
23Wed3:552.85:412.610:530.810:222.07:117:34Full Moon23Wed
24Thu4:153.27:582.812:010.17:087:36Waning Gibbous24Thu
25Fri4:443.69:543.11:02-0.67:067:38Waning Gibbous25Fri
26Sat5:223.92:01-1.07:047:40Waning Gibbous26Sat
27Sun6:094.12:58-1.27:017:41Third Quarter27Sun
28Mon12:113.67:03 AM4.12:113.53:54-1.16:597:43Third Quarter28Mon
29Tue12:583.58:01 AM4.03:193.44:50-1.06:577:45Third Quarter29Tue
30Wed1:413.49:01 AM3.84:243.35:43-0.76:557:46Third Quarter30Wed
31Thu2:203.210:02 AM3.55:283.06:34-0.46:527:48Waning Crescent31Thu
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 6:06 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 20% 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 Waxing Crescent (20% 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