48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

56°
H 64°
L 53°
SE
5mph
Low tide
12:47 pm

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

TIDE TIMES for Sunday, September 13, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 4h 49m at 12:47 pm (2.9 ft)
Next high tide : 6:34 pm (7.8 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:45 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Aug 1876

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:268.08:15-0.69:436.94:547:53Waxing Gibbous1Tue
2Wed12:196.94:588.18:57-0.810:126.74:557:51Waxing Gibbous2Wed
3Thu1:156.95:278.19:35-0.910:366.54:577:50Full Moon3Thu
4Fri2:097.05:518.010:11-1.011:026.24:587:48Full Moon4Fri
5Sat3:007.06:118.010:45-0.911:345.74:597:47Full Moon5Sat
6Sun3:486.96:298.011:18-0.65:007:45Full Moon6Sun
7Mon4:386.76:468.112:095.211:50 AM-0.25:027:44Waning Gibbous7Mon
8Tue5:306.47:068.112:484.512:230.55:037:42Waning Gibbous8Tue
9Wed6:276.07:288.01:283.612:561.55:057:40Waning Gibbous9Wed
10Thu7:335.77:528.02:112.61:312.75:067:39Waning Gibbous10Thu
11Fri8:515.58:177.92:571.62:073.95:077:37Third Quarter11Fri
12Sat10:395.58:437.83:460.62:475.25:097:35Third Quarter12Sat
13Sun1:086.14:41-0.23:446.35:107:34Third Quarter13Sun
14Mon2:326.95:40-0.95:247.05:117:32Waning Crescent14Mon
15Tue3:177.56:42-1.57:017.25:137:30Waning Crescent15Tue
16Wed3:527.97:41-2.08:127.05:147:28Waning Crescent16Wed
17Thu12:137.84:258.18:36-2.39:076.55:157:27Waning Crescent17Thu
18Fri1:287.84:558.39:26-2.39:575.75:177:25New Moon18Fri
19Sat2:407.75:238.310:13-1.910:464.85:187:23New Moon19Sat
20Sun3:477.55:508.310:57-1.211:363.85:207:21New Moon20Sun
21Mon4:517.26:168.311:39-0.15:217:19Waxing Crescent21Mon
22Tue5:566.86:418.212:262.912:211.25:227:17Waxing Crescent22Tue
23Wed7:056.47:058.01:161.91:042.65:247:15Waxing Crescent23Wed
24Thu8:256.17:317.82:061.21:514.05:257:14First Quarter24Thu
25Fri10:066.17:577.42:560.72:455.25:267:12First Quarter25Fri
26Sat11:596.58:277.13:480.44:006.15:287:10First Quarter26Sat
27Sun1:267.04:450.35:556.65:297:08First Quarter27Sun
28Mon2:257.55:460.38:116.65:317:06Waxing Gibbous28Mon
29Tue3:097.76:480.39:066.45:327:04Waxing Gibbous29Tue
30Wed3:447.87:450.29:306.15:337:02Waxing Gibbous30Wed
31Thu12:186.44:127.88:320.19:465.85:357:00Waxing Gibbous31Thu
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 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