51.8633’ N, 176.6320’ W

Adak Island, AK

50°
H -°
L 48°
SW
10mph
High tide
11:28 pm

Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Adak Island, AK.
Next low tide (tomorrow) : 8:47 am (0.1 ft)
Next high tide : in 8h 24m at 11:28 pm (3.4 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 7:31 am
Moon phase : Waxing Gibbous (78% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Jul 1857

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:333.78:090.15:009:37Waxing Gibbous1Wed
2Thu11:293.98:43-0.25:009:36Waxing Gibbous2Thu
3Fri11:294.19:17-0.55:019:36Waxing Gibbous3Fri
4Sat11:414.39:53-0.75:029:36Waxing Gibbous4Sat
5Sun10:30-0.85:039:35Full Moon5Sun
6Mon12:034.411:08-0.95:049:35Full Moon6Mon
7Tue12:324.511:47-1.05:059:34Full Moon7Tue
8Wed1:034.412:24-1.05:069:33Full Moon8Wed
9Thu1:334.212:59-1.05:079:33Waning Gibbous9Thu
10Fri1:313.811:353.51:33-0.85:089:32Waning Gibbous10Fri
11Sat10:503.32:03-0.45:099:31Waning Gibbous11Sat
12Sun10:253.32:290.25:109:30Third Quarter12Sun
13Mon8:162.010:183.55:111.82:480.85:119:29Third Quarter13Mon
14Tue11:101.710:233.85:451.02:461.55:129:28Third Quarter14Tue
15Wed10:384.26:260.15:139:27Third Quarter15Wed
16Thu11:014.67:12-0.65:159:26Waning Crescent16Thu
17Fri11:334.98:00-1.15:169:25Waning Crescent17Fri
18Sat8:51-1.45:179:24Waning Crescent18Sat
19Sun12:125.09:43-1.65:199:23New Moon19Sun
20Mon12:574.910:36-1.65:209:21New Moon20Mon
21Tue1:474.611:27-1.45:219:20New Moon21Tue
22Wed2:414.212:16-1.25:239:19New Moon22Wed
23Thu3:423.710:053.31:00-0.85:249:18Waxing Crescent23Thu
24Fri4:563.210:043.22:053.01:40-0.45:259:16Waxing Crescent24Fri
25Sat6:302.610:063.23:322.42:160.25:279:15Waxing Crescent25Sat
26Sun8:192.110:093.24:301.82:470.85:289:13First Quarter26Sun
27Mon10:271.910:123.35:161.23:091.45:309:12First Quarter27Mon
28Tue1:072.05:560.73:112.05:319:10First Quarter28Tue
29Wed10:203.66:340.35:339:09First Quarter29Wed
30Thu10:263.87:120.05:349:07First Quarter30Thu
31Fri10:384.07:50-0.35:369:06Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

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Is this week a spring tide or neap tide in Adak Island, AK?

Adak Island, AK is currently in a transitional phase. Tonight's moon is 78% 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 shifting between spring and neap.

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 (78% illuminated). This places Adak Island, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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