Tides Today & Tomorrow in Mystery Bay, Marrowstone Island, WA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.

Next low tide : 2:59 pm (3.2 ft)
Next high tide : in 2h 12m at 9:25 am (5.4 ft)
Sunset today : 8:42 pm
Sunrise tomorrow : 5:51 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Jan 1956

< Dec 1955

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Feb 1956 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sun	7:34	9.5	6:08	7.0	12:21	-1.5	1:37	5.2	8:00	4:27		1	Sun
2	Mon	8:10	9.4	7:18	6.2	1:08	-0.3	2:46	4.3	8:00	4:28		2	Mon
3	Tue	8:46	9.3	8:44	5.5	1:54	1.0	3:54	3.4	8:00	4:29		3	Tue
4	Wed	9:21	9.1	10:43	5.3	2:42	2.5	4:58	2.5	8:00	4:30		4	Wed
5	Thu	9:55	8.8			3:33	4.0	5:57	1.6	8:00	4:31		5	Thu
6	Fri	12:48	5.8	10:29 AM	8.5	4:36	5.3	6:49	0.9	8:00	4:32		6	Fri
7	Sat	2:19	6.6	11:05 AM	8.2	5:55	6.3	7:34	0.3	8:00	4:33		7	Sat
8	Sun	3:20	7.5	11:43 AM	8.0	7:21	6.9	8:13	-0.1	7:59	4:34		8	Sun
9	Mon	4:05	8.0	12:25	7.8	8:35	7.1	8:49	-0.4	7:59	4:36		9	Mon
10	Tue	4:42	8.4	1:10	7.7	9:32	7.1	9:23	-0.5	7:59	4:37		10	Tue
11	Wed	5:14	8.6	1:56	7.6	10:14	7.0	9:57	-0.6	7:58	4:38		11	Wed
12	Thu	5:42	8.7	2:42	7.6	10:50	6.8	10:30	-0.6	7:58	4:39		12	Thu
13	Fri	6:07	8.7	3:29	7.4	11:26	6.5	11:03	-0.5	7:57	4:41		13	Fri
14	Sat	6:29	8.7	4:15	7.2			12:04	6.1	7:56	4:42		14	Sat
15	Sun	6:49	8.8	5:03	6.9			12:44	5.7	7:56	4:43		15	Sun
16	Mon	7:11	8.8	5:53	6.5	12:10	0.3	1:26	5.1	7:55	4:45		16	Mon
17	Tue	7:36	8.8	6:50	6.1	12:44	0.9	2:10	4.3	7:54	4:46		17	Tue
18	Wed	8:02	8.8	7:55	5.7	1:18	1.8	2:56	3.5	7:54	4:48		18	Wed
19	Thu	8:31	8.7	9:15	5.4	1:53	2.8	3:45	2.6	7:53	4:49		19	Thu
20	Fri	9:02	8.6	11:07	5.5	2:31	4.0	4:36	1.6	7:52	4:50		20	Fri
21	Sat	9:35	8.6			3:15	5.1	5:31	0.7	7:51	4:52		21	Sat
22	Sun	1:31	6.1	10:13 AM	8.5	4:20	6.2	6:26	-0.3	7:50	4:53		22	Sun
23	Mon	2:44	7.0	10:59 AM	8.5	5:54	6.9	7:21	-1.1	7:49	4:55		23	Mon
24	Tue	3:29	7.7	11:55 AM	8.5	7:20	7.2	8:12	-1.8	7:48	4:56		24	Tue
25	Wed	4:06	8.3	12:58	8.5	8:29	7.1	9:02	-2.1	7:47	4:58		25	Wed
26	Thu	4:40	8.7	2:04	8.4	9:27	6.6	9:49	-2.2	7:46	5:00		26	Thu
27	Fri	5:13	9.0	3:09	8.2	10:21	6.0	10:34	-1.9	7:45	5:01		27	Fri
28	Sat	5:45	9.1	4:12	7.9	11:15	5.2	11:18	-1.2	7:44	5:03		28	Sat
29	Sun	6:17	9.2	5:13	7.5			12:09	4.4	7:43	5:04		29	Sun
30	Mon	6:48	9.2	6:16	6.9	12:02	-0.2	1:04	3.6	7:41	5:06		30	Mon
31	Tue	7:19	9.1	7:24	6.4	12:46	1.0	2:00	2.8	7:40	5:07		31	Tue
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9444971)

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What time does the tide turn (slack tide) in Mystery Bay, Marrowstone Island, WA today?

Slack tide in Mystery Bay, Marrowstone Island, WA is approximately 12:12 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 Mystery Bay, Marrowstone Island, WA?

Mystery Bay, Marrowstone Island, WA is currently in a transitional phase. Tonight's moon is 64% 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 Mystery Bay, Marrowstone Island, WA 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 Mystery Bay, Marrowstone Island, WA?

Tide predictions for Mystery Bay, Marrowstone Island, WA 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 Mystery Bay, Marrowstone Island, WA?

Tide data for Mystery Bay, Marrowstone Island, WA is sourced from NOAA Station #9444971. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9444971.

What is the moon phase in Mystery Bay, Marrowstone Island, WA tonight?

Tonight the moon over Mystery Bay, Marrowstone Island, WA is Third Quarter (64% illuminated). This places Mystery Bay, Marrowstone Island, WA 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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