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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide : 5:46 pm (5.8 ft)
Next high tide : in 4h 10m at 2:30 pm (5.9 ft)
Sunset today : 8:59 pm
Sunrise tomorrow : 5:34 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Aug 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:417.06:108.010:35-0.611:215.85:468:47Full Moon1Thu
2Fri3:317.06:357.911:10-0.511:545.55:488:45Full Moon2Fri
3Sat4:196.96:567.911:43-0.35:498:44Full Moon3Sat
4Sun5:066.87:137.912:285.012:160.15:508:42Full Moon4Sun
5Mon5:536.67:317.91:054.512:490.65:518:41Waning Gibbous5Mon
6Tue6:426.37:527.91:433.81:221.35:538:39Waning Gibbous6Tue
7Wed7:356.08:177.92:233.21:552.15:548:38Waning Gibbous7Wed
8Thu8:345.78:457.83:052.52:293.05:558:36Waning Gibbous8Thu
9Fri9:435.59:157.73:501.83:054.05:578:35Third Quarter9Fri
10Sat11:145.49:477.64:391.13:464.95:588:33Third Quarter10Sat
11Sun1:285.85:320.54:435.85:598:31Third Quarter11Sun
12Mon2:596.46:31-0.26:116.46:018:30Third Quarter12Mon
13Tue3:477.07:30-0.87:396.66:028:28Waning Crescent13Tue
14Wed12:107.64:237.48:27-1.38:486.36:048:26Waning Crescent14Wed
15Thu1:177.74:547.79:19-1.79:445.86:058:24Waning Crescent15Thu
16Fri2:277.75:248.010:08-1.810:345.06:068:23New Moon16Fri
17Sat3:357.75:538.210:54-1.611:244.16:088:21New Moon17Sat
18Sun4:417.66:228.311:39-0.96:098:19New Moon18Sun
19Mon5:467.46:528.412:143.112:240.06:108:17Waxing Crescent19Mon
20Tue6:507.17:238.41:062.11:091.26:128:15Waxing Crescent20Tue
21Wed7:586.77:558.31:581.31:552.46:138:14Waxing Crescent21Wed
22Thu9:146.48:298.02:520.72:453.66:148:12First Quarter22Thu
23Fri10:446.39:067.73:470.43:424.76:168:10First Quarter23Fri
24Sat12:256.44:450.24:535.66:178:08First Quarter24Sat
25Sun1:526.85:470.36:256.16:198:06First Quarter25Sun
26Mon2:577.26:520.38:076.16:208:04Waxing Gibbous26Mon
27Tue3:467.57:550.49:205.96:218:02Waxing Gibbous27Tue
28Wed12:426.54:247.68:500.410:015.56:238:00Waxing Gibbous28Wed
29Thu1:506.54:557.69:350.410:305.16:247:58Waxing Gibbous29Thu
30Fri2:496.65:207.610:130.610:564.66:257:56Full Moon30Fri
31Sat3:416.75:387.510:470.811:234.06:277:54Full Moon31Sat
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 4:08 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 63% 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 First Quarter (63% 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