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 3h 39m 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 - Mar 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:054.011:572.81:572.44:05-0.18:327:25Third Quarter1Sun
2Mon8:504.12:462.75:00-0.48:307:27Third Quarter2Mon
3Tue1:102.99:38 AM4.13:382.85:54-0.48:277:29Waning Crescent3Tue
4Wed2:113.010:28 AM4.14:352.96:46-0.48:257:30Waning Crescent4Wed
5Thu3:033.011:21 AM3.95:382.97:38-0.28:237:32Waning Crescent5Thu
6Fri3:483.012:153.66:462.88:270.18:217:34Waning Crescent6Fri
7Sat4:262.91:143.37:592.69:150.48:197:36New Moon7Sat
8Sun4:582.82:193.09:162.410:010.78:167:38New Moon8Sun
9Mon5:242.83:352.710:302.110:451.18:147:39New Moon9Mon
10Tue5:442.85:012.511:351.811:281.48:127:41New Moon10Tue
11Wed6:002.86:362.412:291.58:107:43Waxing Crescent11Wed
12Thu6:152.88:132.512:091.81:151.28:077:45Waxing Crescent12Thu
13Fri6:332.99:432.612:492.11:580.98:057:46Waxing Crescent13Fri
14Sat6:533.011:032.71:272.32:400.78:037:48Waxing Crescent14Sat
15Sun7:173.12:032.63:220.58:007:50First Quarter15Sun
16Mon12:182.87:43 AM3.22:342.84:030.37:587:51First Quarter16Mon
17Tue8:123.34:450.27:567:53First Quarter17Tue
18Wed8:453.45:250.27:537:55First Quarter18Wed
19Thu9:233.46:050.27:517:57Waxing Gibbous19Thu
20Fri10:103.46:440.27:497:58Waxing Gibbous20Fri
21Sat11:063.37:230.47:478:00Waxing Gibbous21Sat
22Sun3:292.512:163.16:342.48:040.67:448:02Waxing Gibbous22Sun
23Mon3:172.51:392.97:582.08:450.97:428:04Full Moon23Mon
24Tue3:262.63:152.79:171.69:301.37:408:05Full Moon24Tue
25Wed3:472.84:562.610:291.110:191.77:378:07Full Moon25Wed
26Thu4:173.16:382.711:350.511:112.17:358:09Waning Gibbous26Thu
27Fri4:553.38:132.812:370.17:338:10Waning Gibbous27Fri
28Sat5:393.59:323.012:092.41:36-0.37:308:12Waning Gibbous28Sat
29Sun6:283.710:383.11:112.72:34-0.67:288:14Third Quarter29Sun
30Mon7:223.711:333.22:152.83:30-0.67:268:15Third Quarter30Mon
31Tue8:203.73:192.84:25-0.67:238:17Third Quarter31Tue
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