Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Adak Island, AK.
Next low tide (tomorrow) : 6:51 am (-0.2 ft)
Next high tide : in 11h 50m at 10:19 pm (3.6 ft)
Sunset today : 9:01 pm
Sunrise tomorrow : 6:38 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Jun 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:521.811:503.17:151.74:150.95:029:25Waxing Gibbous1Mon
2Tue12:121.77:251.34:221.45:019:26Waxing Gibbous2Tue
3Wed11:573.57:510.75:019:27Waxing Gibbous3Wed
4Thu8:260.15:009:28Waxing Gibbous4Thu
5Fri12:123.89:08-0.44:599:29Full Moon5Fri
6Sat12:374.19:53-0.94:599:30Full Moon6Sat
7Sun1:124.310:42-1.34:589:31Full Moon7Sun
8Mon1:574.311:33-1.54:589:32Waning Gibbous8Mon
9Tue2:534.210:013.812:24-1.54:579:33Waning Gibbous9Tue
10Wed4:013.910:053.712:203.71:14-1.44:579:34Waning Gibbous10Wed
11Thu5:183.510:223.72:053.32:03-1.14:579:34Third Quarter11Thu
12Fri6:443.010:443.73:282.82:49-0.64:569:35Third Quarter12Fri
13Sat8:192.511:073.74:402.13:33-0.14:569:36Third Quarter13Sat
14Sun10:052.111:313.75:431.54:130.64:569:36Third Quarter14Sun
15Mon12:081.96:400.94:471.24:569:37Waning Crescent15Mon
16Tue2:392.07:320.45:061.94:569:37Waning Crescent16Tue
17Wed12:113.78:200.04:569:38Waning Crescent17Wed
18Thu12:253.79:03-0.34:569:38Waning Crescent18Thu
19Fri12:313.79:43-0.54:569:38New Moon19Fri
20Sat12:233.711:513.810:20-0.64:569:39New Moon20Sat
21Sun11:113.810:55-0.74:569:39New Moon21Sun
22Mon10:453.811:30-0.74:569:39New Moon22Mon
23Tue10:423.812:04-0.64:579:39Waxing Crescent23Tue
24Wed10:473.712:38-0.64:579:39Waxing Crescent24Wed
25Thu10:533.61:11-0.44:589:39Waxing Crescent25Thu
26Fri10:553.41:43-0.24:589:39Waxing Crescent26Fri
27Sat10:503.32:120.14:589:39First Quarter27Sat
28Sun10:423.32:370.44:599:39First Quarter28Sun
29Mon10:373.32:540.95:009:39First Quarter29Mon
30Tue10:511.610:383.56:251.32:551.35:009:39First Quarter30Tue
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 2:35 am — 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 48% 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 (48% 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