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 1h 26m 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 - Jul 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:514.312:27-1.05:3110:09New Moon1Fri
2Sat2:284.21:06-1.05:3210:08New Moon2Sat
3Sun3:113.91:44-0.95:3310:08Waxing Crescent3Sun
4Mon4:083.511:203.32:21-0.65:3410:07Waxing Crescent4Mon
5Tue10:573.32:56-0.25:3410:07Waxing Crescent5Tue
6Wed8:232.310:563.45:072.13:280.45:3510:06First Quarter6Wed
7Thu10:321.911:083.75:571.33:571.05:3610:06First Quarter7Thu
8Fri12:541.86:460.64:151.65:3710:05First Quarter8Fri
9Sat11:544.37:36-0.15:3810:04First Quarter9Sat
10Sun8:26-0.65:3910:04Waxing Gibbous10Sun
11Mon12:254.59:16-1.05:4010:03Waxing Gibbous11Mon
12Tue1:004.610:07-1.25:4210:02Waxing Gibbous12Tue
13Wed1:384.610:57-1.25:4310:01Full Moon13Wed
14Thu2:184.411:46-1.15:4410:00Full Moon14Thu
15Fri2:584.112:33-0.95:459:59Full Moon15Fri
16Sat3:413.710:463.31:17-0.75:469:58Full Moon16Sat
17Sun4:283.310:423.21:333.21:57-0.45:489:57Waning Gibbous17Sun
18Mon10:473.22:330.05:499:56Waning Gibbous18Mon
19Tue7:102.410:513.14:432.33:040.55:509:55Waning Gibbous19Tue
20Wed8:572.010:553.25:261.83:310.95:519:53Waning Gibbous20Wed
21Thu11:001.811:013.36:041.43:501.45:539:52Third Quarter21Thu
22Fri11:093.46:410.95:549:51Third Quarter22Fri
23Sat11:203.67:170.55:569:50Third Quarter23Sat
24Sun11:323.87:540.25:579:48Third Quarter24Sun
25Mon11:484.08:33-0.15:589:47Waning Crescent25Mon
26Tue9:11-0.36:009:45Waning Crescent26Tue
27Wed12:104.29:51-0.56:019:44Waning Crescent27Wed
28Thu12:404.310:31-0.76:039:42Waning Crescent28Thu
29Fri1:174.311:11-0.76:049:41New Moon29Fri
30Sat2:034.111:52-0.76:069:39New Moon30Sat
31Sun3:013.812:32-0.56:079:38New Moon31Sun
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