Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Adak Island, AK.

Next low tide (tomorrow) : 8:47 am (0.1 ft)
Next high tide : in 12h 09m at 11:28 pm (3.4 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 7:31 am
Moon phase : Waxing Gibbous (78% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Dec 1857

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Jan 1858 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Tue			1:37	5.3			11:28	-1.5	9:01	5:08		1	Tue
2	Wed			2:21	5.3					9:02	5:07		2	Wed
3	Thu			3:15	5.1	12:21	-1.7			9:03	5:06		3	Thu
4	Fri			4:21	4.7	1:15	-1.6			9:05	5:06		4	Fri
5	Sat	11:32	4.3	5:39	4.2	2:06	-1.3	3:14	4.1	9:06	5:05		5	Sat
6	Sun	11:40	4.2	7:06	3.6	2:55	-0.9	4:43	3.5	9:07	5:05		6	Sun
7	Mon	11:55	4.1	8:44	2.9	3:39	-0.4	5:54	2.8	9:08	5:05		7	Mon
8	Tue			12:10	4.0	4:19	0.3	6:53	2.1	9:10	5:04		8	Tue
9	Wed			12:22	3.9	4:51	1.0	7:43	1.4	9:11	5:04		9	Wed
10	Thu	12:54	2.1	12:29	3.9	5:10	1.7	8:27	0.8	9:12	5:04		10	Thu
11	Fri			12:30	4.0			9:06	0.4	9:13	5:04		11	Fri
12	Sat			12:22	4.1			9:41	0.0	9:14	5:04		12	Sat
13	Sun			12:05	4.3			10:14	-0.2	9:15	5:04		13	Sun
14	Mon	11:49	4.5					10:47	-0.4	9:16	5:04		14	Mon
15	Tue	11:50	4.7					11:22	-0.5	9:16	5:04		15	Tue
16	Wed			12:04	4.8			11:58	-0.5	9:17	5:04		16	Wed
17	Thu			12:22	4.8					9:18	5:05		17	Thu
18	Fri			12:35	4.7	12:35	-0.6			9:19	5:05		18	Fri
19	Sat			12:34	4.5	1:11	-0.6			9:19	5:05		19	Sat
20	Sun			12:24	4.3	1:45	-0.5			9:20	5:06		20	Sun
21	Mon			12:10	4.1	2:17	-0.3			9:20	5:06		21	Mon
22	Tue	11:48	3.9			2:45	0.0			9:21	5:07		22	Tue
23	Wed	11:26	3.8			3:07	0.5			9:21	5:07		23	Wed
24	Thu	11:12	3.9	11:20	1.9	3:20	1.1	6:51	1.5	9:22	5:08		24	Thu
25	Fri	11:09	4.2			3:07	1.7	7:18	0.7	9:22	5:09		25	Fri
26	Sat	11:16	4.6					7:56	-0.1	9:22	5:09		26	Sat
27	Sun	11:33	5.0					8:40	-0.7	9:22	5:10		27	Sun
28	Mon			12:01	5.4			9:28	-1.2	9:22	5:11		28	Mon
29	Tue			12:38	5.6			10:20	-1.5	9:22	5:12		29	Tue
30	Wed			1:23	5.6			11:12	-1.6	9:22	5:13		30	Wed
31	Thu			2:14	5.3					9:22	5:14		31	Thu
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9461380)

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Is this week a spring tide or neap tide in Adak Island, AK?

Adak Island, AK is currently in a transitional phase. Tonight's moon is 78% 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 shifting between spring and neap.

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 Gibbous (78% illuminated). This places Adak Island, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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

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