Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 2h 14m at 2:45 pm (1.1 ft)
Next high tide : 9:26 pm (3.1 ft)
Sunset today : 9:07 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Aug 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:193.112:270.05:389:07Waning Gibbous1Sat
2Sun9:043.012:550.45:399:05Waning Gibbous2Sun
3Mon5:492.18:523.03:292.11:180.95:419:04Waning Gibbous3Mon
4Tue8:131.98:453.13:491.61:331.45:429:02Third Quarter4Tue
5Wed8:433.34:181.05:449:00Third Quarter5Wed
6Thu8:443.54:500.65:458:58Third Quarter6Thu
7Fri8:513.85:250.15:478:57Third Quarter7Fri
8Sat9:074.16:03-0.25:488:55Waning Crescent8Sat
9Sun9:364.46:43-0.55:508:53Waning Crescent9Sun
10Mon10:154.67:27-0.85:528:51Waning Crescent10Mon
11Tue11:034.68:12-1.05:538:49Waning Crescent11Tue
12Wed11:584.58:59-1.15:558:47New Moon12Wed
13Thu9:45-1.05:568:45New Moon13Thu
14Fri1:044.110:30-0.85:588:43New Moon14Fri
15Sat2:283.67:282.811:13-0.411:252.56:008:41Waxing Crescent15Sat
16Sun4:143.07:102.911:540.26:018:39Waxing Crescent16Sun
17Mon6:122.67:173.21:021.612:330.96:038:37Waxing Crescent17Mon
18Tue8:182.37:363.62:120.81:101.66:058:35First Quarter18Tue
19Wed10:302.48:033.93:130.11:442.26:068:33First Quarter19Wed
20Thu8:354.14:10-0.56:088:31First Quarter20Thu
21Fri9:114.35:04-0.86:098:29First Quarter21Fri
22Sat9:504.35:59-1.06:118:27Waxing Gibbous22Sat
23Sun10:304.26:52-1.06:138:25Waxing Gibbous23Sun
24Mon11:094.07:45-0.86:148:23Waxing Gibbous24Mon
25Tue11:463.88:36-0.66:168:20Waxing Gibbous25Tue
26Wed9:25-0.46:188:18Full Moon26Wed
27Thu12:233.510:09-0.16:198:16Full Moon27Thu
28Fri1:073.28:002.810:480.210:552.76:218:14Full Moon28Fri
29Sat2:172.87:352.611:220.66:228:12Full Moon29Sat
30Sun4:052.47:122.512:242.211:53 AM1.06:248:09Waning Gibbous30Sun
31Mon6:092.26:572.61:111.812:221.56:268:07Waning Gibbous31Mon
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 6:05 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 spring phase. Tonight's moon is 20% 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 Waxing Crescent (20% 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