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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 1h 01m at 6:02 pm (5.8 ft)
Next high tide : 11:44 pm (8.3 ft)
Sunset today : 9:10 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Jul 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:188.46:298.510:32-3.210:547.15:159:14Full Moon1Mon
2Tue3:028.27:128.811:16-3.311:537.15:159:13Full Moon2Tue
3Wed3:527.97:548.812:00-3.15:169:13Full Moon3Wed
4Thu4:457.58:348.812:536.912:46-2.65:179:13Waning Gibbous4Thu
5Fri5:407.19:138.61:576.51:31-1.85:179:12Waning Gibbous5Fri
6Sat6:366.59:488.53:076.02:16-0.95:189:12Waning Gibbous6Sat
7Sun7:375.810:208.34:165.33:000.25:199:11Waning Gibbous7Sun
8Mon8:465.110:468.15:184.53:431.45:209:11Third Quarter8Mon
9Tue10:144.611:097.96:123.54:262.75:219:10Third Quarter9Tue
10Wed12:434.56:582.65:144.05:229:10Third Quarter10Wed
11Thu2:595.37:381.66:155.25:239:09Third Quarter11Thu
12Fri4:176.28:140.87:326.15:249:08Waning Crescent12Fri
13Sat12:217.55:056.98:480.08:486.75:249:08Waning Crescent13Sat
14Sun12:517.45:427.59:22-0.79:517.05:259:07Waning Crescent14Sun
15Mon1:257.46:147.99:57-1.210:397.25:279:06Waning Crescent15Mon
16Tue2:047.46:438.110:34-1.711:187.25:289:05New Moon16Tue
17Wed2:487.47:128.311:12-2.011:557.15:299:04New Moon17Wed
18Thu3:377.47:408.411:51-2.25:309:03New Moon18Thu
19Fri4:307.38:088.412:356.812:32-2.25:319:02New Moon19Fri
20Sat5:267.18:368.51:226.41:14-1.85:329:01Waxing Crescent20Sat
21Sun6:276.79:058.52:155.71:56-1.25:339:00Waxing Crescent21Sun
22Mon7:346.19:348.53:124.82:38-0.15:348:59Waxing Crescent22Mon
23Tue8:525.510:038.54:103.73:211.25:358:58First Quarter23Tue
24Wed10:275.010:338.45:072.44:072.85:378:57First Quarter24Wed
25Thu12:345.16:041.15:014.35:388:56First Quarter25Thu
26Fri2:385.96:59-0.16:105.65:398:54Waxing Gibbous26Fri
27Sat3:566.97:52-1.17:346.65:408:53Waxing Gibbous27Sat
28Sun12:208.14:507.78:43-1.98:557.05:428:52Waxing Gibbous28Sun
29Mon1:088.05:338.29:32-2.310:027.05:438:51Waxing Gibbous29Mon
30Tue2:027.86:128.510:19-2.410:576.85:448:49Full Moon30Tue
31Wed3:017.66:488.511:04-2.311:476.45:458:48Full Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9444971)

Common Questions About Mystery Bay, Marrowstone Island, WA Tides

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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 8:53 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 28% 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 Waning Crescent (28% 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