Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 6h 43m at 11:47 am (-1.0 ft)
Next high tide (tomorrow) : 3:55 am (3.9 ft)
Sunset today : 9:15 pm
Sunrise tomorrow : 6:27 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Apr 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:153.21:553.12:43-0.16:507:49Waning Gibbous1Thu
2Fri12:243.25:55 AM3.32:313.23:25-0.16:487:51Third Quarter2Fri
3Sat6:423.34:06-0.16:467:53Third Quarter3Sat
4Sun7:333.34:460.06:447:54Third Quarter4Sun
5Mon2:082.98:30 AM3.14:142.95:230.16:417:56Third Quarter5Mon
6Tue2:032.79:36 AM3.05:072.65:580.46:397:58Waning Crescent6Tue
7Wed1:472.610:55 AM2.76:062.26:300.76:378:00Waning Crescent7Wed
8Thu1:382.612:302.57:071.77:021.26:348:01Waning Crescent8Thu
9Fri1:392.72:212.38:101.27:331.76:328:03New Moon9Fri
10Sat1:512.94:312.49:120.68:032.26:308:05New Moon10Sat
11Sun2:133.310:120.06:288:06New Moon11Sun
12Mon2:463.611:11-0.66:268:08Waxing Crescent12Mon
13Tue3:293.812:09-0.96:238:10Waxing Crescent13Tue
14Wed4:223.910:243.41:06-1.26:218:11Waxing Crescent14Wed
15Thu5:233.910:563.512:443.42:02-1.26:198:13Waxing Crescent15Thu
16Fri6:293.811:283.42:073.22:57-1.16:178:15First Quarter16Fri
17Sat7:393.53:223.03:49-0.86:158:16First Quarter17Sat
18Sun12:003.38:53 AM3.24:342.64:39-0.46:128:18First Quarter18Sun
19Mon12:293.210:11 AM2.85:422.25:260.16:108:20Waxing Gibbous19Mon
20Tue12:563.111:36 AM2.56:471.86:090.66:088:22Waxing Gibbous20Tue
21Wed1:173.01:112.27:471.36:471.26:068:23Waxing Gibbous21Wed
22Thu1:332.93:052.28:400.97:191.86:048:25Waxing Gibbous22Thu
23Fri1:412.95:232.39:270.67:402.36:028:27Full Moon23Fri
24Sat1:412.910:080.36:008:28Full Moon24Sat
25Sun1:343.010:460.05:588:30Full Moon25Sun
26Mon1:133.211:22-0.15:568:32Full Moon26Mon
27Tue12:413.310:583.511:59-0.35:548:33Waning Gibbous27Tue
28Wed11:053.512:36-0.45:528:35Waning Gibbous28Wed
29Thu11:263.51:15-0.45:508:37Waning Gibbous29Thu
30Fri11:483.51:53-0.45:488:38Waning Gibbous30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

Show All
What time does the tide turn (slack tide) in Adak Island, AK today?

Slack tide in Adak Island, AK is approximately 7:51 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 0% 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 New Moon (0% 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