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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 17m at 12:51 pm (-2.3 ft)
Next high tide : 8:12 pm (8.7 ft)
Sunset today : 9:05 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Jun 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:268.36:248.210:59-2.711:175.65:149:02Full Moon1Wed
2Thu4:118.37:128.511:44-3.15:149:03Full Moon2Thu
3Fri4:598.08:008.712:145.812:30-3.05:139:04Waning Gibbous3Fri
4Sat5:517.68:488.81:165.81:19-2.65:139:05Waning Gibbous4Sat
5Sun6:477.09:358.72:255.62:08-1.85:129:05Waning Gibbous5Sun
6Mon7:476.310:228.63:425.12:59-0.85:129:06Waning Gibbous6Mon
7Tue8:575.611:078.55:044.53:510.45:119:07Third Quarter7Tue
8Wed10:235.011:508.36:213.64:461.75:119:08Third Quarter8Wed
9Thu12:214.87:242.75:442.95:119:08Third Quarter9Thu
10Fri12:288.12:145.28:131.96:494.05:109:09Waning Crescent10Fri
11Sat1:027.93:355.98:521.17:564.95:109:10Waning Crescent11Sat
12Sun1:327.74:346.59:240.48:585.55:109:10Waning Crescent12Sun
13Mon2:017.55:227.19:54-0.29:535.95:109:11Waning Crescent13Mon
14Tue2:317.46:017.510:23-0.610:416.15:109:11New Moon14Tue
15Wed3:037.36:367.810:54-0.911:266.25:109:12New Moon15Wed
16Thu3:397.27:088.011:25-1.15:109:12New Moon16Thu
17Fri4:187.17:388.112:086.311:59 AM-1.25:109:13New Moon17Fri
18Sat4:586.98:078.212:526.212:34-1.25:109:13Waxing Crescent18Sat
19Sun5:416.78:368.31:406.11:11-1.05:109:13Waxing Crescent19Sun
20Mon6:266.49:068.32:305.81:49-0.75:109:14Waxing Crescent20Mon
21Tue7:175.99:398.33:245.42:29-0.15:109:14Waxing Crescent21Tue
22Wed8:165.510:128.34:174.83:100.65:119:14First Quarter22Wed
23Thu9:275.010:468.35:094.03:551.55:119:14First Quarter23Thu
24Fri10:534.811:228.36:003.04:452.55:119:14First Quarter24Fri
25Sat12:384.96:501.95:443.65:129:14First Quarter25Sat
26Sun2:305.57:380.66:514.65:129:14Waxing Gibbous26Sun
27Mon12:388.33:476.38:25-0.68:015.35:129:14Waxing Gibbous27Mon
28Tue1:208.44:447.19:11-1.69:065.75:139:14Waxing Gibbous28Tue
29Wed2:068.45:327.89:56-2.410:065.95:139:14Full Moon29Wed
30Thu2:568.36:168.310:42-2.811:035.95:149:14Full Moon30Thu
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 4:31 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 8% 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 (8% 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