Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 54m at 4:38 pm (1.9 ft)
Next high tide : 11:33 pm (3.7 ft)
Sunset today : 9:52 pm
Sunrise tomorrow : 5:53 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - May 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:523.24:522.110:070.68:311.86:149:12Waning Crescent1Mon
2Tue3:053.310:580.16:129:14New Moon2Tue
3Wed3:153.411:45-0.36:109:16New Moon3Wed
4Thu3:173.412:27-0.56:089:17New Moon4Thu
5Fri3:013.61:08-0.76:069:19New Moon5Fri
6Sat1:293.71:47-0.76:059:21Waxing Crescent6Sat
7Sun12:443.82:27-0.76:039:22Waxing Crescent7Sun
8Mon1:003.83:06-0.76:019:24Waxing Crescent8Mon
9Tue1:223.73:45-0.66:009:26Waxing Crescent9Tue
10Wed1:443.64:23-0.55:589:27Waxing Crescent10Wed
11Thu2:013.44:58-0.35:569:29First Quarter11Thu
12Fri2:093.25:290.05:559:30First Quarter12Fri
13Sat2:053.15:540.45:539:32First Quarter13Sat
14Sun1:523.011:38 AM1.98:531.86:110.95:529:33First Quarter14Sun
15Mon1:393.02:081.79:091.26:091.45:509:35Waxing Gibbous15Mon
16Tue1:323.29:370.65:499:36Waxing Gibbous16Tue
17Wed1:323.510:120.05:479:38Waxing Gibbous17Wed
18Thu1:413.910:54-0.65:469:39Full Moon18Thu
19Fri2:034.211:40-1.15:459:41Full Moon19Fri
20Sat2:374.512:29-1.55:439:42Full Moon20Sat
21Sun3:224.61:21-1.75:429:43Waning Gibbous21Sun
22Mon4:184.52:13-1.75:419:45Waning Gibbous22Mon
23Tue5:264.23:04-1.65:409:46Waning Gibbous23Tue
24Wed12:303.76:44 AM3.83:183.63:53-1.35:399:48Waning Gibbous24Wed
25Thu12:293.68:11 AM3.24:563.04:39-0.85:389:49Third Quarter25Thu
26Fri12:413.59:49 AM2.66:152.35:21-0.25:379:50Third Quarter26Fri
27Sat12:573.511:40 AM2.17:231.65:580.55:369:51Third Quarter27Sat
28Sun1:143.61:521.88:220.86:271.25:359:53Waning Crescent28Sun
29Mon1:313.69:150.25:349:54Waning Crescent29Mon
30Tue1:463.710:02-0.35:339:55Waning Crescent30Tue
31Wed1:573.810:46-0.65:329:56Waning Crescent31Wed
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 8:05 pm — 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 55% 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 (55% 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