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

TIDE TIMES for Friday, August 14, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide (tomorrow) : 1:17 am (3.5 ft)
Next high tide : in 3h 41m at 7:18 pm (8.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waxing Crescent (6% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Nov 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:098.25:527.012:43-1.11:386.26:554:53Waning Gibbous1Wed
2Thu9:028.26:426.61:30-0.92:476.26:564:52Third Quarter2Thu
3Fri9:578.27:526.12:22-0.54:085.86:584:50Third Quarter3Fri
4Sat10:488.29:195.73:180.25:285.16:594:49Third Quarter4Sat
5Sun11:348.310:575.54:201.06:304.17:014:47Third Quarter5Sun
6Mon12:168.35:261.87:182.97:024:46Waning Crescent6Mon
7Tue12:415.812:538.46:312.77:591.67:044:44Waning Crescent7Tue
8Wed2:106.41:298.47:323.58:390.47:054:43Waning Crescent8Wed
9Thu3:207.12:038.58:294.29:17-0.77:074:41New Moon9Thu
10Fri4:187.82:388.49:224.99:56-1.47:094:40New Moon10Fri
11Sat5:108.33:148.310:135.410:35-1.87:104:39New Moon11Sat
12Sun5:598.73:508.011:055.811:16-1.87:124:37New Moon12Sun
13Mon6:478.84:297.712:016.17:134:36Waxing Crescent13Mon
14Tue7:358.85:107.21:036.27:154:35Waxing Crescent14Tue
15Wed8:238.75:556.712:40-1.02:166.27:164:34Waxing Crescent15Wed
16Thu9:118.66:466.21:25-0.33:415.97:184:32Waxing Crescent16Thu
17Fri9:588.47:475.62:120.55:095.47:194:31First Quarter17Fri
18Sat10:418.39:045.13:021.46:144.77:214:30First Quarter18Sat
19Sun11:188.110:454.93:562.36:583.97:224:29First Quarter19Sun
20Mon11:488.04:553.27:313.17:244:28First Quarter20Mon
21Tue12:535.212:147.95:584.07:572.37:254:27Waxing Gibbous21Tue
22Wed2:175.812:407.96:584.78:221.57:264:26Waxing Gibbous22Wed
23Thu3:146.41:087.97:525.38:480.67:284:25Waxing Gibbous23Thu
24Fri3:597.11:388.08:395.79:16-0.27:294:25Waxing Gibbous24Fri
25Sat4:387.62:108.09:236.19:47-0.97:314:24Full Moon25Sat
26Sun5:148.12:448.010:056.310:21-1.47:324:23Full Moon26Sun
27Mon5:518.43:207.910:486.510:58-1.87:334:22Full Moon27Mon
28Tue6:298.74:007.811:356.611:39-1.97:354:22Waning Gibbous28Tue
29Wed7:108.94:447.512:286.67:364:21Waning Gibbous29Wed
30Thu7:528.95:357.112:22-1.71:296.47:374:20Waning Gibbous30Thu
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 10:17 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 6% 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 Waxing Crescent (6% 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