Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 3h 30m at 6:43 am (1.7 ft)
Next high tide : 10:34 am (2.1 ft)
Sunset today : 10:09 pm
Sunrise tomorrow : 5:27 am
Moon phase : First Quarter (50% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Oct 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:143.37:450.07:497:22Waxing Gibbous1Sat
2Sun5:382.88:240.37:482.87:517:19Waxing Gibbous2Sun
3Mon12:093.05:272.68:590.58:562.57:527:17Waxing Gibbous3Mon
4Tue1:182.75:032.59:290.910:072.17:547:15Waxing Gibbous4Tue
5Wed2:582.44:442.59:541.411:111.67:567:13Full Moon5Wed
6Thu5:162.24:322.710:101.97:577:10Full Moon6Thu
7Fri4:263.012:051.07:597:08Full Moon7Fri
8Sat4:283.412:550.48:017:06Waning Gibbous8Sat
9Sun4:463.81:43-0.18:027:04Waning Gibbous9Sun
10Mon5:254.02:32-0.68:047:01Waning Gibbous10Mon
11Tue6:244.23:22-0.98:066:59Waning Gibbous11Tue
12Wed7:364.24:14-1.18:076:57Third Quarter12Wed
13Thu8:514.15:06-1.18:096:55Third Quarter13Thu
14Fri3:163.65:58-1.05:473.58:116:53Third Quarter14Fri
15Sat3:223.36:48-0.67:013.08:136:50Waning Crescent15Sat
16Sun3:293.17:35-0.28:152.48:146:48Waning Crescent16Sun
17Mon12:573.13:373.18:190.49:271.88:166:46Waning Crescent17Mon
18Tue2:392.73:473.18:591.110:341.28:186:44Waning Crescent18Tue
19Wed4:432.43:563.29:361.811:330.68:206:42New Moon19Wed
20Thu7:162.64:043.310:082.58:216:40New Moon20Thu
21Fri4:073.512:250.18:236:38New Moon21Fri
22Sat3:533.61:11-0.28:256:36Waxing Crescent22Sat
23Sun12:003.91:55-0.48:276:34Waxing Crescent23Sun
24Mon12:314.12:37-0.58:286:32Waxing Crescent24Mon
25Tue1:054.13:19-0.58:306:30Waxing Crescent25Tue
26Wed1:394.04:01-0.58:326:28First Quarter26Wed
27Thu2:133.94:42-0.38:346:26First Quarter27Thu
28Fri2:413.75:23-0.28:356:24First Quarter28Fri
29Sat3:013.56:010.08:376:22First Quarter29Sat
30Sun3:073.26:340.38:396:20First Quarter30Sun
31Mon3:003.17:010.79:072.28:416:18Waxing Gibbous31Mon
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 8:38 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 neap phase. Tonight's moon is 50% 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 minimum.

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 First Quarter (50% illuminated). This places Adak Island, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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