Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Adak Island, AK.
Next low tide (tomorrow) : 9:51 am (-0.3 ft)
Next high tide : in 12h 01m at 11:59 pm (3.9 ft)
Sunset today : 8:53 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waxing Gibbous (83% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Jun 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:403.99:333.612:37-1.45:039:25Waxing Crescent1Sun
2Mon4:523.59:523.61:323.21:26-1.05:029:26Waxing Crescent2Mon
3Tue6:113.010:153.63:002.72:11-0.65:019:27First Quarter3Tue
4Wed7:372.510:383.54:122.22:52-0.15:009:28First Quarter4Wed
5Thu9:132.110:583.55:141.63:290.55:009:29First Quarter5Thu
6Fri11:061.811:133.56:081.13:581.14:599:30First Quarter6Fri
7Sat1:261.86:550.64:101.74:599:31Waxing Gibbous7Sat
8Sun11:293.57:380.34:589:32Waxing Gibbous8Sun
9Mon11:293.68:160.04:589:32Waxing Gibbous9Mon
10Tue11:263.88:51-0.34:579:33Waxing Gibbous10Tue
11Wed11:273.99:26-0.44:579:34Full Moon11Wed
12Thu11:374.010:01-0.64:569:35Full Moon12Thu
13Fri11:534.010:35-0.64:569:35Full Moon13Fri
14Sat11:10-0.74:569:36Full Moon14Sat
15Sun12:053.911:363.811:45-0.74:569:37Waning Gibbous15Sun
16Mon10:443.612:18-0.74:569:37Waning Gibbous16Mon
17Tue10:253.412:51-0.54:569:37Waning Gibbous17Tue
18Wed10:073.31:21-0.24:569:38Waning Gibbous18Wed
19Thu9:543.31:480.24:569:38Third Quarter19Thu
20Fri7:012.09:523.44:461.92:110.64:569:39Third Quarter20Fri
21Sat9:311.79:593.75:081.32:251.24:569:39Third Quarter21Sat
22Sun10:154.05:450.64:569:39Third Quarter22Sun
23Mon10:394.36:28-0.14:579:39Waning Crescent23Mon
24Tue11:104.67:15-0.74:579:39Waning Crescent24Tue
25Wed11:494.78:04-1.14:579:39Waning Crescent25Wed
26Thu8:55-1.44:589:39New Moon26Thu
27Fri12:344.79:47-1.54:589:39New Moon27Fri
28Sat1:254.510:38-1.44:599:39New Moon28Sat
29Sun2:234.18:463.511:27-1.211:343.34:599:39Waxing Crescent29Sun
30Mon3:303.68:503.412:14-0.95:009:39Waxing Crescent30Mon
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 4:55 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 83% 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 Gibbous (83% 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