Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 6h 57m at 10:56 am (-1.2 ft)
Next high tide (tomorrow) : 2:44 am (4.4 ft)
Sunset today : 9:17 pm
Sunrise tomorrow : 6:25 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Apr 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:532.812:343.07:001.97:290.66:527:49Waxing Gibbous1Sat
2Sun2:142.82:052.78:121.48:171.16:497:50Full Moon2Sun
3Mon2:412.93:452.69:220.99:081.66:477:52Full Moon3Mon
4Tue3:123.15:302.710:270.410:032.06:457:54Full Moon4Tue
5Wed3:463.27:082.811:280.111:072.46:427:55Waning Gibbous5Wed
6Thu4:243.38:303.012:24-0.26:407:57Waning Gibbous6Thu
7Fri5:043.39:353.212:162.71:17-0.46:387:59Waning Gibbous7Fri
8Sat5:473.310:303.31:262.82:07-0.46:368:00Waning Gibbous8Sat
9Sun6:313.211:193.32:322.92:55-0.36:338:02Third Quarter9Sun
10Mon7:183.13:322.83:42-0.26:318:04Third Quarter10Mon
11Tue12:023.28:06 AM3.04:262.74:260.06:298:06Third Quarter11Tue
12Wed12:403.18:58 AM2.85:152.65:070.26:278:07Third Quarter12Wed
13Thu1:112.99:54 AM2.66:002.45:450.56:248:09Waning Crescent13Thu
14Fri1:332.810:58 AM2.46:442.16:200.86:228:11Waning Crescent14Fri
15Sat1:442.712:132.27:281.86:491.26:208:12Waning Crescent15Sat
16Sun1:472.61:452.18:121.57:141.66:188:14Waning Crescent16Sun
17Mon1:502.63:492.18:551.27:292.06:168:16New Moon17Mon
18Tue1:532.79:380.86:148:17New Moon18Tue
19Wed1:572.910:210.46:118:19New Moon19Wed
20Thu2:053.111:040.16:098:21New Moon20Thu
21Fri2:223.311:48-0.26:078:22Waxing Crescent21Fri
22Sat2:553.412:33-0.56:058:24Waxing Crescent22Sat
23Sun3:443.51:20-0.76:038:26Waxing Crescent23Sun
24Mon4:473.511:343.32:06-0.86:018:28Waxing Crescent24Mon
25Tue5:593.411:413.22:273.22:53-0.75:598:29First Quarter25Tue
26Wed7:183.211:503.13:322.93:40-0.55:578:31First Quarter26Wed
27Thu8:422.94:352.54:25-0.25:558:33First Quarter27Thu
28Fri12:033.110:13 AM2.65:362.05:090.35:538:34Waxing Gibbous28Fri
29Sat12:203.111:49 AM2.46:371.45:510.85:518:36Waxing Gibbous29Sat
30Sun12:403.21:352.27:350.86:321.45:498:38Waxing Gibbous30Sun
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 6:50 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 1% 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 New Moon (1% 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