48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

55°
H -°
L 52°
ESE
1mph
High tide
7:56 am

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide : 1:30 pm (4.0 ft)
Next high tide : in 5h 18m at 7:56 am (6.9 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - May 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:267.812:315.58:053.97:111.64:597:30Waning Crescent1Sat
2Sun1:477.92:006.08:312.58:022.44:577:31Waning Crescent2Sun
3Mon2:098.03:186.69:030.98:503.44:557:33Waning Crescent3Mon
4Tue2:328.24:257.39:39-0.79:384.44:547:34New Moon4Tue
5Wed2:598.35:267.910:18-2.010:265.34:527:36New Moon5Wed
6Thu3:288.36:268.411:00-3.011:186.24:517:37New Moon6Thu
7Fri3:598.27:268.611:46-3.44:497:38Waxing Crescent7Fri
8Sat4:358.08:278.612:166.712:34-3.24:487:40Waxing Crescent8Sat
9Sun5:147.69:318.61:267.01:26-2.74:467:41Waxing Crescent9Sun
10Mon6:027.010:328.52:597.02:22-1.84:457:42First Quarter10Mon
11Tue7:066.211:278.45:466.43:22-0.84:437:44First Quarter11Tue
12Wed4:240.34:427:45First Quarter12Wed
13Thu12:138.310:28 AM4.97:464.55:281.44:417:46First Quarter13Thu
14Fri12:518.112:384.98:193.56:292.44:397:48Waxing Gibbous14Fri
15Sat1:218.02:155.48:442.47:263.44:387:49Waxing Gibbous15Sat
16Sun1:427.83:256.09:041.48:174.34:377:50Waxing Gibbous16Sun
17Mon1:567.64:226.79:240.59:045.14:357:52Waxing Gibbous17Mon
18Tue2:097.55:107.39:46-0.39:505.84:347:53Full Moon18Tue
19Wed2:267.45:537.710:11-0.910:366.34:337:54Full Moon19Wed
20Thu2:467.36:348.010:39-1.411:246.74:327:55Full Moon20Thu
21Fri3:097.27:138.211:10-1.64:317:56Full Moon21Fri
22Sat3:327.17:538.312:166.911:45 AM-1.74:307:58Waning Gibbous22Sat
23Sun3:436.98:368.21:177.112:24-1.64:297:59Waning Gibbous23Sun
24Mon2:516.89:218.22:447.01:06-1.34:288:00Waning Gibbous24Mon
25Tue10:038.21:52-1.04:278:01Waning Gibbous25Tue
26Wed10:418.22:40-0.54:268:02Third Quarter26Wed
27Thu11:128.23:300.14:258:03Third Quarter27Thu
28Fri9:125.011:398.26:424.94:241.04:248:04Third Quarter28Fri
29Sat11:014.86:553.75:202.14:238:05Third Quarter29Sat
30Sun12:048.212:545.17:232.16:193.24:238:06Waning Crescent30Sun
31Mon12:298.22:345.97:570.57:194.44:228:07Waning Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9444971)

Common Questions About Mystery Bay, Marrowstone Island, WA Tides

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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 14% 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 (14% 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