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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide : 9:39 am (-3.1 ft)
Next high tide : in 3h 29m at 1:02 am (8.4 ft)
Sunset today : 9:09 pm
Sunrise tomorrow : 5:23 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Jan 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:228.97:565.62:030.44:165.18:004:28First Quarter1Fri
2Sat9:558.89:265.22:471.45:064.18:004:29First Quarter2Sat
3Sun10:278.811:165.13:352.65:542.88:004:30First Quarter3Sun
4Mon11:018.84:323.86:401.48:004:31First Quarter4Mon
5Tue1:245.811:35 AM8.85:395.07:250.08:004:32Waxing Gibbous5Tue
6Wed2:516.812:128.86:536.08:09-1.28:004:33Waxing Gibbous6Wed
7Thu3:507.812:548.88:026.78:54-2.27:594:34Waxing Gibbous7Thu
8Fri4:398.51:398.89:057.09:39-2.87:594:35Full Moon8Fri
9Sat5:239.12:308.610:037.110:24-2.97:594:36Full Moon9Sat
10Sun6:049.33:258.411:017.011:10-2.77:584:38Full Moon10Sun
11Mon6:459.54:218.012:006.77:584:39Waning Gibbous11Mon
12Tue7:259.45:187.41:046.27:574:40Waning Gibbous12Tue
13Wed8:039.36:186.712:43-1.22:115.67:574:42Waning Gibbous13Wed
14Thu8:409.27:246.01:29-0.13:204.87:564:43Waning Gibbous14Thu
15Fri9:158.98:465.42:151.24:274.07:554:44Third Quarter15Fri
16Sat9:478.710:515.13:022.65:273.17:554:46Third Quarter16Sat
17Sun10:178.43:543.96:202.37:544:47Third Quarter17Sun
18Mon1:055.610:47 AM8.24:575.27:041.57:534:49Third Quarter18Mon
19Tue2:336.511:18 AM7.96:146.17:420.87:524:50Waning Crescent19Tue
20Wed3:317.311:52 AM7.87:356.78:170.37:514:51Waning Crescent20Wed
21Thu4:147.912:317.78:447.08:51-0.27:504:53Waning Crescent21Thu
22Fri4:498.31:137.69:377.19:24-0.57:494:54Waning Crescent22Fri
23Sat5:208.51:587.610:187.19:58-0.87:484:56New Moon23Sat
24Sun5:478.72:447.610:526.910:33-1.07:474:57New Moon24Sun
25Mon6:138.73:307.511:276.711:08-1.07:464:59New Moon25Mon
26Tue6:378.84:167.412:046.47:455:01New Moon26Tue
27Wed7:028.85:047.112:456.07:445:02Waxing Crescent27Wed
28Thu7:298.85:576.812:21-0.41:305.37:435:04Waxing Crescent28Thu
29Fri7:578.86:576.31:000.22:184.67:425:05Waxing Crescent29Fri
30Sat8:278.88:085.81:391.23:103.67:405:07Waxing Crescent30Sat
31Sun8:588.79:365.52:202.44:042.67:395:08First Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9444971)

Common Questions About Mystery Bay, Marrowstone Island, WA Tides

Show All
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 5:20 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 Mystery Bay, Marrowstone Island, WA?

Mystery Bay, Marrowstone Island, WA is currently in a spring phase. Tonight's moon is 10% 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 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 (10% illuminated). This places Mystery Bay, Marrowstone Island, WA 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