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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 2h 44m at 9:39 am (-3.1 ft)
Next high tide : 5:49 pm (8.2 ft)
Sunset today : 9:08 pm
Sunrise tomorrow : 5:24 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Jun 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:128.45:507.710:37-2.010:425.25:149:02New Moon1Mon
2Tue3:498.46:438.311:20-2.811:375.75:149:03New Moon2Tue
3Wed4:298.27:358.612:04-3.15:139:04New Moon3Wed
4Thu5:137.98:278.812:366.112:51-3.15:139:05Waxing Crescent4Thu
5Fri5:597.49:188.81:416.21:39-2.65:129:05Waxing Crescent5Fri
6Sat6:516.810:108.72:586.12:28-1.85:129:06Waxing Crescent6Sat
7Sun7:486.110:598.64:295.73:20-0.85:119:07First Quarter7Sun
8Mon8:565.411:458.46:085.04:130.35:119:08First Quarter8Mon
9Tue10:224.87:214.25:091.45:119:08First Quarter9Tue
10Wed12:278.212:244.68:113.36:082.65:109:09First Quarter10Wed
11Thu1:018.02:224.98:472.47:093.65:109:10Waxing Gibbous11Thu
12Fri1:297.83:425.69:161.68:104.55:109:10Waxing Gibbous12Fri
13Sat1:527.74:416.39:400.89:075.25:109:11Waxing Gibbous13Sat
14Sun2:157.65:296.910:050.19:585.75:109:11Waxing Gibbous14Sun
15Mon2:417.56:097.410:31-0.510:456.15:109:12Full Moon15Mon
16Tue3:117.46:467.811:00-1.011:306.35:109:12Full Moon16Tue
17Wed3:437.37:198.011:31-1.35:109:13Full Moon17Wed
18Thu4:187.27:538.212:146.512:04-1.55:109:13Full Moon18Thu
19Fri4:547.18:268.31:016.512:41-1.65:109:13Waning Gibbous19Fri
20Sat5:336.89:018.41:516.51:20-1.55:109:14Waning Gibbous20Sat
21Sun6:156.59:378.42:476.32:01-1.35:109:14Waning Gibbous21Sun
22Mon7:066.110:138.43:475.92:45-0.85:119:14Waning Gibbous22Mon
23Tue8:125.610:498.44:465.33:30-0.15:119:14Third Quarter23Tue
24Wed9:325.111:258.45:434.54:190.95:119:14Third Quarter24Wed
25Thu11:044.811:598.46:343.45:132.05:129:14Third Quarter25Thu
26Fri12:534.97:222.16:143.25:129:14Third Quarter26Fri
27Sat12:358.42:445.58:070.77:204.25:129:14Waning Crescent27Sat
28Sun1:118.44:046.48:51-0.68:275.15:139:14Waning Crescent28Sun
29Mon1:498.45:037.39:35-1.89:295.75:139:14Waning Crescent29Mon
30Tue2:308.45:548.010:18-2.610:286.15:149:14New Moon30Tue
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 1:44 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 spring phase. Tonight's moon is 4% 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 (4% 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