51.8633’ N, 176.6320’ W

Adak Island, AK

49°
H -°
L 45°
NW
6mph
Low tide
7:23 am

Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Sunday, September 20, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 9h 23m at 7:23 am (-0.1 ft)
Next high tide : 10:43 pm (3.5 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 7:28 am
Moon phase : First Quarter (60% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Sep 1858

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:174.45:31-0.86:278:02Third Quarter1Wed
2Thu10:114.56:23-1.06:288:00Waning Crescent2Thu
3Fri11:104.57:17-1.16:307:57Waning Crescent3Fri
4Sat8:10-1.06:327:55Waning Crescent4Sat
5Sun12:144.29:02-0.76:337:53New Moon5Sun
6Mon1:243.86:172.69:52-0.39:032.56:357:51New Moon6Mon
7Tue2:453.36:112.610:410.210:542.06:377:48New Moon7Tue
8Wed4:212.96:182.711:280.76:387:46New Moon8Wed
9Thu6:122.66:312.812:191.412:151.36:407:44Waxing Crescent9Thu
10Fri8:092.66:483.01:260.91:041.96:417:41Waxing Crescent10Fri
11Sat9:582.87:063.12:200.41:552.46:437:39Waxing Crescent11Sat
12Sun11:293.07:273.33:090.02:472.86:457:37Waxing Crescent12Sun
13Mon12:443.23:54-0.23:353.16:467:34First Quarter13Mon
14Tue1:543.34:40-0.34:113.36:487:32First Quarter14Tue
15Wed8:513.65:25-0.36:507:30First Quarter15Wed
16Thu9:313.66:11-0.26:517:27First Quarter16Thu
17Fri10:123.66:56-0.16:537:25Waxing Gibbous17Fri
18Sat10:563.57:400.06:547:23Waxing Gibbous18Sat
19Sun11:433.38:200.16:567:20Waxing Gibbous19Sun
20Mon8:570.46:587:18Waxing Gibbous20Mon
21Tue12:432.95:432.49:300.79:152.36:597:16Full Moon21Tue
22Wed2:122.65:062.410:011.110:421.87:017:13Full Moon22Wed
23Thu4:172.34:512.510:291.611:471.27:037:11Full Moon23Thu
24Fri6:552.34:482.810:542.27:047:09Waning Gibbous24Fri
25Sat4:563.212:410.67:067:06Waning Gibbous25Sat
26Sun5:173.61:310.07:087:04Waning Gibbous26Sun
27Mon5:553.92:21-0.57:097:02Waning Gibbous27Mon
28Tue6:474.13:12-0.87:116:59Third Quarter28Tue
29Wed7:494.24:05-1.07:136:57Third Quarter29Wed
30Thu8:564.24:58-1.07:146:55Third Quarter30Thu
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 neap phase. Tonight's moon is 60% 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 (60% 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