51.8633’ N, 176.6320’ W

Adak Island, AK

52°
H -°
L 50°
SW
9mph
High tide
12:33 am

Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Tuesday, August 25, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 10:33 am (-0.2 ft)
Next high tide : in 3h 11m at 12:33 am (3.9 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Aug 1916

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:582.911:450.25:389:06Waxing Crescent1Tue
2Wed8:212.912:100.65:409:04Waxing Crescent2Wed
3Thu5:352.17:572.93:012.012:311.05:429:02Waxing Crescent3Thu
4Fri8:021.97:493.23:141.512:411.55:439:01Waxing Crescent4Fri
5Sat7:523.53:410.95:458:59First Quarter5Sat
6Sun8:063.94:160.35:468:57First Quarter6Sun
7Mon8:324.34:56-0.25:488:55First Quarter7Mon
8Tue9:104.65:40-0.65:498:54Waxing Gibbous8Tue
9Wed9:574.86:28-1.05:518:52Waxing Gibbous9Wed
10Thu10:514.87:19-1.25:538:50Waxing Gibbous10Thu
11Fri11:514.68:10-1.25:548:48Full Moon11Fri
12Sat9:01-1.15:568:46Full Moon12Sat
13Sun12:594.29:51-0.85:578:44Full Moon13Sun
14Mon2:193.76:232.810:39-0.310:412.25:598:42Full Moon14Mon
15Tue3:533.16:322.911:250.26:018:40Waning Gibbous15Tue
16Wed5:392.76:513.112:161.612:100.86:028:38Waning Gibbous16Wed
17Thu7:352.47:153.41:300.912:541.46:048:36Waning Gibbous17Thu
18Fri9:322.57:433.52:310.41:372.06:068:34Third Quarter18Fri
19Sat11:222.78:123.73:260.02:172.56:078:32Third Quarter19Sat
20Sun8:423.84:18-0.36:098:30Third Quarter20Sun
21Mon9:123.85:08-0.46:108:28Third Quarter21Mon
22Tue9:423.85:57-0.46:128:25Waning Crescent22Tue
23Wed10:123.86:45-0.46:148:23Waning Crescent23Wed
24Thu10:413.77:30-0.36:158:21Waning Crescent24Thu
25Fri11:133.68:13-0.26:178:19Waning Crescent25Fri
26Sat11:483.38:530.06:198:17New Moon26Sat
27Sun9:280.26:208:15New Moon27Sun
28Mon12:353.07:432.610:010.59:562.56:228:12New Moon28Mon
29Tue1:582.66:372.510:320.811:402.16:238:10New Moon29Tue
30Wed3:592.36:012.511:011.26:258:08Waxing Crescent30Wed
31Thu6:062.25:492.712:331.611:27 AM1.76:278:06Waxing Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

Collapse All
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 90% 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 Waxing Gibbous (90% 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