Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 5h 56m at 1:36 pm (-0.2 ft)
Next high tide : 11:43 pm (3.1 ft)
Sunset today : 9:37 pm
Sunrise tomorrow : 6:08 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - May 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:113.310:27 AM2.56:001.95:220.36:179:10Waning Crescent1Fri
2Sat12:423.211:54 AM2.27:011.56:050.96:159:11Waning Crescent2Sat
3Sun1:073.11:352.17:551.26:421.46:139:13Waning Crescent3Sun
4Mon1:263.03:352.18:430.87:121.96:119:14Waning Crescent4Mon
5Tue1:383.09:260.66:099:16New Moon5Tue
6Wed1:423.010:030.36:079:18New Moon6Wed
7Thu1:393.010:380.16:069:19New Moon7Thu
8Fri1:193.111:13-0.16:049:21New Moon8Fri
9Sat12:023.210:303.411:48-0.26:029:23Waxing Crescent9Sat
10Sun10:453.412:24-0.36:019:24Waxing Crescent10Sun
11Mon11:053.51:01-0.45:599:26Waxing Crescent11Mon
12Tue11:263.41:38-0.45:579:27Waxing Crescent12Tue
13Wed11:403.32:14-0.35:569:29Waxing Crescent13Wed
14Thu11:443.22:49-0.25:549:30First Quarter14Thu
15Fri11:393.13:240.15:539:32First Quarter15Fri
16Sat8:022.311:363.15:452.33:560.45:519:34First Quarter16Sat
17Sun10:022.111:413.26:081.84:270.85:509:35Waxing Gibbous17Sun
18Mon11:581.911:533.46:451.24:541.35:489:37Waxing Gibbous18Mon
19Tue2:031.97:300.65:161.85:479:38Waxing Gibbous19Tue
20Wed12:143.68:180.05:459:39Waxing Gibbous20Wed
21Thu12:423.99:10-0.65:449:41Full Moon21Thu
22Fri1:194.010:04-1.05:439:42Full Moon22Fri
23Sat2:034.110:58-1.35:429:44Full Moon23Sat
24Sun2:554.08:593.511:51-1.411:383.45:409:45Waning Gibbous24Sun
25Mon3:553.89:233.612:44-1.35:399:46Waning Gibbous25Mon
26Tue5:023.59:533.61:203.21:35-1.15:389:48Waning Gibbous26Tue
27Wed6:153.110:243.62:462.82:23-0.75:379:49Third Quarter27Wed
28Thu7:342.710:543.64:022.43:09-0.35:369:50Third Quarter28Thu
29Fri9:002.311:213.55:081.93:510.35:359:51Third Quarter29Fri
30Sat10:392.011:453.56:081.44:290.85:349:53Third Quarter30Sat
31Sun12:361.87:001.04:581.45:339:54Waning Crescent31Sun
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 6:39 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 spring phase. Tonight's moon is 95% 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 Waning Gibbous (95% 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