Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 1h 26m at 1:36 pm (-0.2 ft)
Next high tide : 11:43 pm (3.1 ft)
Sunset today : 9:37 pm
Sunrise tomorrow : 6:08 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Jan 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:343.98:252.31:510.74:372.09:545:46Third Quarter1Thu
2Fri9:454.110:322.22:211.25:151.39:535:47Third Quarter2Fri
3Sat10:034.32:461.85:590.79:535:48Third Quarter3Sat
4Sun10:274.66:450.19:535:49Waning Crescent4Sun
5Mon10:574.87:33-0.39:535:50Waning Crescent5Mon
6Tue11:324.98:23-0.69:525:52Waning Crescent6Tue
7Wed12:114.99:12-0.79:525:53New Moon7Wed
8Thu12:544.710:02-0.79:515:54New Moon8Thu
9Fri1:414.410:50-0.69:515:56New Moon9Fri
10Sat8:163.82:344.010:223.811:37-0.49:505:57New Moon10Sat
11Sun8:233.83:353.612:323.59:505:58Waxing Crescent11Sun
12Mon8:413.84:483.112:20-0.12:073.09:496:00Waxing Crescent12Mon
13Tue9:003.86:152.71:010.33:152.69:486:01Waxing Crescent13Tue
14Wed9:193.87:532.41:370.84:082.19:476:03First Quarter14Wed
15Thu9:363.89:462.22:101.24:521.69:476:04First Quarter15Thu
16Fri9:523.92:351.75:331.29:466:06First Quarter16Fri
17Sat12:092.210:06 AM3.92:442.16:110.99:456:08First Quarter17Sat
18Sun10:194.06:470.69:446:09First Quarter18Sun
19Mon10:324.17:230.49:436:11Waxing Gibbous19Mon
20Tue10:464.27:590.29:426:13Waxing Gibbous20Tue
21Wed11:014.38:350.09:416:14Waxing Gibbous21Wed
22Thu11:204.49:11-0.19:396:16Waxing Gibbous22Thu
23Fri11:464.39:48-0.19:386:18Full Moon23Fri
24Sat12:194.210:25-0.19:376:19Full Moon24Sat
25Sun1:034.011:020.09:366:21Full Moon25Sun
26Mon2:073.611:390.29:346:23Waning Gibbous26Mon
27Tue8:293.43:523.212:593.19:336:25Waning Gibbous27Tue
28Wed8:093.45:492.712:150.52:052.59:326:26Waning Gibbous28Wed
29Thu8:133.67:422.512:510.92:591.89:306:28Waning Gibbous29Thu
30Fri8:293.99:382.31:261.43:511.29:296:30Third Quarter30Fri
31Sat8:534.111:422.41:581.94:410.69:276:32Third Quarter31Sat
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 6:39 pm — 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 95% 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 Gibbous (95% 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