48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

62°
H 63°
L 52°
SSE
18mph
High tide
8:16 pm

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

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide (tomorrow) : 3:53 am (-0.5 ft)
Next high tide : in 5h 17m at 8:16 pm (7.8 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:30 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Aug 1906

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:357.47:53-1.58:036.04:457:48Waxing Gibbous1Wed
2Thu12:498.04:207.98:42-2.09:035.94:477:46Waxing Gibbous2Thu
3Fri1:447.95:018.29:28-2.29:575.74:487:45Full Moon3Fri
4Sat2:417.85:388.410:13-2.110:495.44:497:43Full Moon4Sat
5Sun3:377.66:148.410:57-1.711:404.94:517:42Full Moon5Sun
6Mon4:317.26:488.411:41-1.14:527:40Waning Gibbous6Mon
7Tue5:256.87:208.212:334.412:24-0.24:537:39Waning Gibbous7Tue
8Wed6:216.47:508.11:263.91:080.84:557:37Waning Gibbous8Wed
9Thu7:215.98:207.82:203.41:521.94:567:35Waning Gibbous9Thu
10Fri8:325.58:507.63:142.82:393.04:577:34Third Quarter10Fri
11Sat10:125.39:217.44:092.33:324.14:597:32Third Quarter11Sat
12Sun12:205.55:031.84:375.05:007:31Third Quarter12Sun
13Mon1:506.15:571.35:575.75:017:29Third Quarter13Mon
14Tue2:496.66:480.97:166.05:037:27Waning Crescent14Tue
15Wed3:317.17:340.48:196.15:047:25Waning Crescent15Wed
16Thu12:126.94:047.48:160.09:026.05:057:24Waning Crescent16Thu
17Fri1:036.94:327.68:55-0.39:365.85:077:22Waning Crescent17Fri
18Sat1:537.04:567.79:32-0.610:075.55:087:20New Moon18Sat
19Sun2:437.15:197.810:09-0.710:415.15:097:18New Moon19Sun
20Mon3:327.25:437.910:46-0.711:184.65:117:16New Moon20Mon
21Tue4:237.16:108.011:24-0.45:127:15New Moon21Tue
22Wed5:167.06:398.112:003.912:040.25:147:13Waxing Crescent22Wed
23Thu6:136.77:108.112:463.212:451.05:157:11Waxing Crescent23Thu
24Fri7:166.47:448.01:352.41:292.05:167:09Waxing Crescent24Fri
25Sat8:296.18:207.92:291.62:183.15:187:07First Quarter25Sat
26Sun9:595.99:007.83:260.93:144.25:197:05First Quarter26Sun
27Mon11:486.19:467.64:270.34:245.15:207:03First Quarter27Mon
28Tue1:196.75:31-0.25:485.75:227:01Waxing Gibbous28Tue
29Wed2:227.36:34-0.67:095.85:236:59Waxing Gibbous29Wed
30Thu3:117.77:33-0.98:165.65:256:57Waxing Gibbous30Thu
31Fri12:487.23:518.08:26-1.09:085.25:266:55Waxing Gibbous31Fri
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 transitional phase. Tonight's moon is 67% 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 Third Quarter (67% 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