48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

55°
H 63°
L 53°
SSE
4mph
High tide
6:55 am

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

TIDE TIMES for Sunday, September 13, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide : 12:47 pm (2.9 ft)
Next high tide : in 2h 10m at 6:55 am (7.0 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 - Nov 1876

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:377.52:538.19:455.110:16-1.37:044:58Full Moon1Wed
2Thu5:288.03:178.110:275.910:53-2.17:054:57Full Moon2Thu
3Fri6:208.43:418.111:126.611:34-2.67:074:55Waning Gibbous3Fri
4Sat7:158.64:058.012:037.17:084:54Waning Gibbous4Sat
5Sun8:148.74:297.812:20-2.71:037.47:104:52Waning Gibbous5Sun
6Mon9:178.74:497.41:11-2.42:227.57:114:51Waning Gibbous6Mon
7Tue10:188.62:06-1.87:134:49Third Quarter7Tue
8Wed11:128.68:136.03:06-0.97:036.17:154:48Third Quarter8Wed
9Thu11:568.610:135.44:090.17:265.07:164:47Third Quarter9Thu
10Fri12:338.65:141.27:543.77:184:45Waning Crescent10Fri
11Sat12:195.41:048.56:182.48:222.37:194:44Waning Crescent11Sat
12Sun2:035.91:298.57:183.58:501.07:214:43Waning Crescent12Sun
13Mon3:196.71:518.48:134.69:18-0.17:224:42Waning Crescent13Mon
14Tue4:207.52:118.29:055.59:47-1.07:244:40New Moon14Tue
15Wed5:138.12:318.19:566.310:17-1.57:254:39New Moon15Wed
16Thu6:008.62:537.910:486.910:49-1.87:274:38New Moon16Thu
17Fri6:458.93:167.611:437.211:24-1.77:284:37New Moon17Fri
18Sat7:298.93:407.412:467.47:304:36Waxing Crescent18Sat
19Sun8:148.93:537.112:02-1.52:117.37:314:35Waxing Crescent19Sun
20Mon9:008.712:43-1.07:334:34Waxing Crescent20Mon
21Tue9:468.61:26-0.47:344:33Waxing Crescent21Tue
22Wed10:278.52:130.27:354:32First Quarter22Wed
23Thu11:018.48:235.23:011.07:205.37:374:31First Quarter23Thu
24Fri11:268.310:064.83:511.87:254.57:384:31First Quarter24Fri
25Sat11:478.34:432.77:333.57:404:30First Quarter25Sat
26Sun12:004.912:088.35:393.67:492.37:414:29Waxing Gibbous26Sun
27Mon1:545.512:308.36:374.68:120.97:424:28Waxing Gibbous27Mon
28Tue3:106.412:538.47:335.58:40-0.47:444:28Waxing Gibbous28Tue
29Wed4:067.41:188.58:266.39:13-1.77:454:27Full Moon29Wed
30Thu4:548.21:448.69:177.09:50-2.67:464:27Full Moon30Thu
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