51.8633’ N, 176.6320’ W

Adak Island, AK

46°
H 51°
L 49°
WSW
11mph
Low tide
8:07 am

Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Monday, September 21, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 1h 21m at 8:07 am (0.0 ft)
Next high tide : 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 - May 1858

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:093.82:01-0.75:448:39Waning Gibbous1Sat
2Sun12:333.82:41-0.75:428:40Waning Gibbous2Sun
3Mon1:023.83:21-0.65:418:42Waning Gibbous3Mon
4Tue1:303.64:01-0.55:398:44Third Quarter4Tue
5Wed1:543.54:37-0.45:378:45Third Quarter5Wed
6Thu2:053.25:10-0.15:358:47Third Quarter6Thu
7Fri1:593.05:380.35:338:49Third Quarter7Fri
8Sat1:422.810:33 AM2.17:382.05:570.85:328:50Waning Crescent8Sat
9Sun1:252.81:001.88:131.46:031.35:308:52Waning Crescent9Sun
10Mon1:163.08:540.75:288:53Waning Crescent10Mon
11Tue1:143.49:38-0.15:278:55New Moon11Tue
12Wed1:233.810:27-0.75:258:57New Moon12Wed
13Thu1:444.211:18-1.35:238:58New Moon13Thu
14Fri2:184.512:11-1.75:229:00Waxing Crescent14Fri
15Sat3:044.61:05-1.95:209:01Waxing Crescent15Sat
16Sun4:054.41:59-1.95:199:03Waxing Crescent16Sun
17Mon5:194.22:51-1.75:179:04Waxing Crescent17Mon
18Tue12:143.86:41 AM3.73:353.63:42-1.35:169:06First Quarter18Tue
19Wed12:233.68:07 AM3.24:593.04:28-0.85:159:07First Quarter19Wed
20Thu12:383.59:42 AM2.66:142.35:11-0.25:139:09First Quarter20Thu
21Fri12:533.411:30 AM2.17:191.65:460.65:129:10Waxing Gibbous21Fri
22Sat1:073.41:411.88:160.96:121.35:119:11Waxing Gibbous22Sat
23Sun1:163.49:060.35:099:13Waxing Gibbous23Sun
24Mon1:203.49:49-0.15:089:14Waxing Gibbous24Mon
25Tue1:153.510:28-0.55:079:15Full Moon25Tue
26Wed12:573.711:04-0.75:069:17Full Moon26Wed
27Thu12:303.911:39-0.85:059:18Full Moon27Thu
28Fri12:184.112:14-0.95:049:19Full Moon28Fri
29Sat12:234.112:51-0.95:039:20Waning Gibbous29Sat
30Sun12:334.11:28-0.95:029:22Waning Gibbous30Sun
31Mon12:414.02:05-0.85:019:23Waning Gibbous31Mon
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