Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 1:36 pm (-0.2 ft)
Next high tide : in 7h 02m at 2:22 am (3.5 ft)
Sunset today : 9:39 pm
Sunrise tomorrow : 6:06 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Feb 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:534.29:236:36New Moon1Sat
2Sun1:043.912:06-0.19:226:38New Moon2Sun
3Mon11:093.512:360.19:206:40Waxing Crescent3Mon
4Tue10:183.31:040.49:186:41Waxing Crescent4Tue
5Wed9:443.21:280.89:176:43Waxing Crescent5Wed
6Thu9:213.39:132.11:451.34:351.79:156:45Waxing Crescent6Thu
7Fri9:113.51:441.85:001.19:136:47First Quarter7Fri
8Sat9:103.85:340.59:116:49First Quarter8Sat
9Sun9:204.26:13-0.19:106:51First Quarter9Sun
10Mon9:444.66:58-0.69:086:52First Quarter10Mon
11Tue10:215.07:46-0.99:066:54Waxing Gibbous11Tue
12Wed11:095.28:37-1.19:046:56Waxing Gibbous12Wed
13Thu12:035.29:29-1.29:026:58Waxing Gibbous13Thu
14Fri1:044.910:20-1.09:007:00Full Moon14Fri
15Sat2:134.511:10-0.78:587:02Full Moon15Sat
16Sun3:333.911:58-0.38:567:04Full Moon16Sun
17Mon8:023.15:083.312:172.68:547:05Waning Gibbous17Mon
18Tue8:043.26:562.812:430.31:521.98:527:07Waning Gibbous18Tue
19Wed8:183.48:562.61:260.93:041.28:507:09Waning Gibbous19Wed
20Thu8:373.611:012.62:071.64:030.68:487:11Waning Gibbous20Thu
21Fri9:003.72:472.24:560.18:467:13Third Quarter21Fri
22Sat12:592.89:23 AM3.93:222.85:46-0.28:447:15Third Quarter22Sat
23Sun9:484.06:34-0.38:427:16Third Quarter23Sun
24Mon10:124.07:21-0.38:407:18Third Quarter24Mon
25Tue10:384.18:07-0.38:377:20Waning Crescent25Tue
26Wed11:054.08:52-0.28:357:22Waning Crescent26Wed
27Thu11:364.09:35-0.18:337:24Waning Crescent27Thu
28Fri12:083.810:140.08:317:25Waning Crescent28Fri
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 7:59 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 98% 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 Full Moon (98% 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