Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 9:10 am (-1.3 ft)
Next high tide (tomorrow) : in 3h 42m at 11:52 pm (4.8 ft)
Sunset today : 9:23 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Apr 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:252.912:263.47:112.58:20-0.17:518:49Waning Crescent1Thu
2Fri3:492.81:443.18:232.29:100.37:498:50Waning Crescent2Fri
3Sat4:142.83:112.89:361.710:010.87:478:52New Moon3Sat
4Sun4:412.84:482.610:471.310:541.37:458:54New Moon4Sun
5Mon5:092.96:332.611:520.911:501.77:428:55New Moon5Mon
6Tue5:382.98:162.712:510.57:408:57Waxing Crescent6Tue
7Wed6:083.09:442.912:522.11:430.27:388:59Waxing Crescent7Wed
8Thu6:383.010:553.11:572.52:320.07:369:00Waxing Crescent8Thu
9Fri7:093.111:553.23:042.73:18-0.27:339:02Waxing Crescent9Fri
10Sat7:413.04:082.84:03-0.27:319:04First Quarter10Sat
11Sun12:483.38:16 AM3.05:052.94:46-0.17:299:06First Quarter11Sun
12Mon1:353.28:54 AM3.05:552.95:290.07:279:07First Quarter12Mon
13Tue2:183.19:38 AM2.96:362.86:100.17:249:09First Quarter13Tue
14Wed2:543.010:28 AM2.87:122.76:490.37:229:11Waxing Gibbous14Wed
15Thu3:202.811:25 AM2.67:492.57:260.57:209:12Waxing Gibbous15Thu
16Fri3:332.712:322.58:282.28:000.87:189:14Waxing Gibbous16Fri
17Sat3:322.61:542.39:121.98:321.17:169:16Waxing Gibbous17Sat
18Sun3:302.53:312.19:581.69:031.57:139:17Full Moon18Sun
19Mon3:312.65:252.210:441.29:341.97:119:19Full Moon19Mon
20Tue3:382.77:432.411:300.710:042.37:099:21Full Moon20Tue
21Wed3:523.012:160.27:079:22Full Moon21Wed
22Thu4:153.21:04-0.27:059:24Waning Gibbous22Thu
23Fri4:493.41:52-0.57:039:26Waning Gibbous23Fri
24Sat5:343.52:42-0.87:019:28Waning Gibbous24Sat
25Sun12:043.46:30 AM3.62:373.33:32-0.96:599:29Third Quarter25Sun
26Mon12:323.47:35 AM3.53:463.24:22-0.96:579:31Third Quarter26Mon
27Tue12:583.48:47 AM3.44:513.05:12-0.76:559:33Third Quarter27Tue
28Wed1:233.310:04 AM3.15:552.66:01-0.36:539:34Third Quarter28Wed
29Thu1:473.211:28 AM2.86:592.26:490.16:519:36Waning Crescent29Thu
30Fri2:103.112:592.58:011.77:350.66:499:38Waning Crescent30Fri
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 4:31 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 Waning 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