Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 7:00 am (0.4 ft)
Next high tide (tomorrow) : in 1h 58m at 11:19 pm (3.6 ft)
Sunset today : 9:53 pm
Sunrise tomorrow : 5:52 am
Moon phase : First Quarter (45% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Oct 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:453.64:04-0.27:487:23Waning Gibbous1Fri
2Sat2:343.64:47-0.27:507:20Third Quarter2Sat
3Sun3:253.55:30-0.26:003.47:527:18Third Quarter3Sun
4Mon9:273.46:12-0.17:537:16Third Quarter4Mon
5Tue10:243.36:530.07:557:14Third Quarter5Tue
6Wed4:532.97:310.27:192.87:577:11Waning Crescent6Wed
7Thu4:252.78:050.48:212.57:587:09Waning Crescent7Thu
8Fri12:462.83:562.68:360.89:252.08:007:07Waning Crescent8Fri
9Sat2:312.53:432.79:031.310:271.48:027:05New Moon9Sat
10Sun4:402.33:413.09:241.911:260.88:037:02New Moon10Sun
11Mon3:503.38:057:00New Moon11Mon
12Tue4:123.712:220.18:076:58New Moon12Tue
13Wed4:474.01:16-0.48:086:56Waxing Crescent13Wed
14Thu5:374.22:11-0.98:106:54Waxing Crescent14Thu
15Fri6:394.33:06-1.28:126:51Waxing Crescent15Fri
16Sat1:343.94:00-1.23:403.88:146:49First Quarter16Sat
17Sun1:543.84:54-1.14:563.68:156:47First Quarter17Sun
18Mon2:163.65:47-0.96:083.28:176:45First Quarter18Mon
19Tue2:393.46:37-0.57:182.78:196:43Waxing Gibbous19Tue
20Wed2:593.37:240.18:272.28:216:41Waxing Gibbous20Wed
21Thu1:072.83:163.28:070.79:331.68:226:39Waxing Gibbous21Thu
22Fri2:522.43:303.28:451.310:321.18:246:37Waxing Gibbous22Fri
23Sat5:092.33:373.29:162.011:230.68:266:35Full Moon23Sat
24Sun3:373.38:286:33Full Moon24Sun
25Mon3:213.412:070.38:296:31Full Moon25Mon
26Tue1:193.612:470.08:316:29Full Moon26Tue
27Wed12:163.91:24-0.28:336:27Waning Gibbous27Wed
28Thu12:364.12:02-0.38:356:25Waning Gibbous28Thu
29Fri1:034.12:40-0.48:366:23Waning Gibbous29Fri
30Sat1:334.13:20-0.48:386:21Waning Gibbous30Sat
31Sun2:023.94:00-0.38:406:19Third Quarter31Sun
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 3:09 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 neap phase. Tonight's moon is 45% 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 minimum.

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 First Quarter (45% illuminated). This places Adak Island, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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