Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in William Henry Bay, AK.

Next low tide : in 33m at 2:12 am (2.9 ft)
Next high tide : 8:22 am (10.4 ft)
Sunset today : 9:44 pm
Sunrise tomorrow : 4:30 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - May 1975

< Apr 1975

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Jun 1975 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Thu	4:20	14.3	5:41	12.3	11:02	1.1	11:35	5.2	4:05	7:50		1	Thu
2	Fri	5:15	12.9	6:48	11.8			12:00	2.4	4:02	7:53		2	Fri
3	Sat	6:24	11.8	7:56	11.9	12:47	5.6	1:07	3.3	3:59	7:55		3	Sat
4	Sun	7:42	11.3	8:54	12.4	2:03	5.2	2:15	3.6	3:57	7:57		4	Sun
5	Mon	8:56	11.5	9:40	13.1	3:09	4.3	3:16	3.6	3:55	8:00		5	Mon
6	Tue	9:56	12.0	10:19	14.0	4:02	3.1	4:06	3.3	3:52	8:02		6	Tue
7	Wed	10:45	12.7	10:54	14.8	4:46	1.8	4:48	3.0	3:50	8:04		7	Wed
8	Thu	11:29	13.4	11:27	15.6	5:24	0.6	5:27	2.8	3:47	8:07		8	Thu
9	Fri			12:09	14.0	6:00	-0.4	6:03	2.6	3:45	8:09		9	Fri
10	Sat	12:01	16.2	12:48	14.4	6:34	-1.3	6:38	2.5	3:43	8:11		10	Sat
11	Sun	12:34	16.7	1:26	14.6	7:09	-1.9	7:14	2.5	3:40	8:13		11	Sun
12	Mon	1:09	17.0	2:04	14.7	7:44	-2.3	7:51	2.7	3:38	8:16		12	Mon
13	Tue	1:46	17.0	2:44	14.5	8:22	-2.3	8:30	2.9	3:36	8:18		13	Tue
14	Wed	2:24	16.7	3:26	14.2	9:03	-2.1	9:13	3.3	3:34	8:20		14	Wed
15	Thu	3:07	16.1	4:13	13.8	9:47	-1.5	10:03	3.7	3:31	8:22		15	Thu
16	Fri	3:56	15.2	5:07	13.5	10:37	-0.7	11:02	4.1	3:29	8:24		16	Fri
17	Sat	4:54	14.2	6:08	13.5	11:34	0.2			3:27	8:26		17	Sat
18	Sun	6:06	13.2	7:14	13.8	12:14	4.0	12:38	1.0	3:25	8:29		18	Sun
19	Mon	7:27	12.7	8:18	14.6	1:31	3.4	1:47	1.6	3:23	8:31		19	Mon
20	Tue	8:48	12.9	9:15	15.6	2:44	2.1	2:54	1.8	3:21	8:33		20	Tue
21	Wed	9:58	13.5	10:06	16.6	3:48	0.5	3:55	1.8	3:19	8:35		21	Wed
22	Thu	11:00	14.2	10:54	17.4	4:43	-1.0	4:50	1.6	3:17	8:37		22	Thu
23	Fri	11:54	14.9	11:40	17.9	5:33	-2.3	5:41	1.5	3:15	8:39		23	Fri
24	Sat			12:44	15.3	6:19	-3.1	6:28	1.6	3:14	8:41		24	Sat
25	Sun	12:24	18.1	1:30	15.4	7:03	-3.4	7:13	1.8	3:12	8:43		25	Sun
26	Mon	1:06	17.9	2:14	15.3	7:45	-3.2	7:57	2.1	3:10	8:45		26	Mon
27	Tue	1:48	17.4	2:57	14.9	8:26	-2.7	8:41	2.6	3:09	8:46		27	Tue
28	Wed	2:29	16.6	3:38	14.3	9:06	-1.8	9:25	3.3	3:07	8:48		28	Wed
29	Thu	3:11	15.5	4:20	13.7	9:47	-0.7	10:12	3.9	3:05	8:50		29	Thu
30	Fri	3:54	14.3	5:05	13.1	10:29	0.5	11:03	4.5	3:04	8:52		30	Fri
31	Sat	4:41	13.0	5:53	12.7	11:15	1.7			3:03	8:53		31	Sat
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9452391)

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What time does the tide turn (slack tide) in William Henry Bay, AK today?

Slack tide in William Henry Bay, AK is approximately 5:17 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 William Henry Bay, AK?

William Henry Bay, AK is currently in a transitional phase. Tonight's moon is 63% 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 William Henry Bay, 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 William Henry Bay, AK?

Tide predictions for William Henry Bay, 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 William Henry Bay, AK?

Tide data for William Henry Bay, AK is sourced from NOAA Station #9452391. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9452391.

What is the moon phase in William Henry Bay, AK tonight?

Tonight the moon over William Henry Bay, AK is First Quarter (63% illuminated). This places William Henry Bay, 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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