48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

63°
H 64°
L 52°
SSE
16mph
High tide
9:44 am

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 : 2:42 pm (5.0 ft)
Next high tide : in 50m at 9:44 am (6.4 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 - Feb 1907

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:118.85:436.812:08-0.31:095.37:395:09Waning Gibbous1Fri
2Sat7:388.86:396.412:460.31:544.67:385:10Waning Gibbous2Sat
3Sun8:088.77:456.01:241.12:443.87:365:12Waning Gibbous3Sun
4Mon8:398.69:045.62:042.23:362.87:355:14Third Quarter4Mon
5Tue9:128.510:505.62:483.44:311.87:345:15Third Quarter5Tue
6Wed9:478.43:414.65:290.87:325:17Third Quarter6Wed
7Thu1:026.110:27 AM8.34:515.76:27-0.17:315:18Waning Crescent7Thu
8Fri2:277.011:14 AM8.36:176.57:22-1.07:295:20Waning Crescent8Fri
9Sat3:217.812:098.27:376.88:15-1.67:285:22Waning Crescent9Sat
10Sun4:048.41:108.28:446.79:05-1.97:265:23Waning Crescent10Sun
11Mon4:438.72:138.19:406.49:52-1.97:255:25New Moon11Mon
12Tue5:198.93:148.010:315.910:37-1.67:235:26New Moon12Tue
13Wed5:539.04:137.711:215.311:21-1.07:215:28New Moon13Wed
14Thu6:259.05:107.412:114.67:205:30Waxing Crescent14Thu
15Fri6:568.96:076.912:05-0.11:034.07:185:31Waxing Crescent15Fri
16Sat7:258.77:086.512:480.91:543.37:165:33Waxing Crescent16Sat
17Sun7:548.48:186.01:312.12:462.77:155:34Waxing Crescent17Sun
18Mon8:238.29:545.82:163.33:392.27:135:36First Quarter18Mon
19Tue8:537.83:064.54:331.87:115:38First Quarter19Tue
20Wed12:016.09:26 AM7.54:095.65:291.47:095:39First Quarter20Wed
21Thu1:396.610:04 AM7.25:366.36:241.17:085:41First Quarter21Thu
22Fri2:427.210:51 AM7.07:166.67:170.87:065:42Waxing Gibbous22Fri
23Sat3:257.611:46 AM6.98:376.68:040.57:045:44Waxing Gibbous23Sat
24Sun3:597.912:446.99:216.48:450.27:025:45Waxing Gibbous24Sun
25Mon4:278.11:407.09:496.29:230.07:005:47Waxing Gibbous25Mon
26Tue4:508.12:337.210:135.99:59-0.16:585:49Full Moon26Tue
27Wed5:108.23:227.210:405.410:34-0.16:575:50Full Moon27Wed
28Thu5:308.34:117.311:114.811:100.26:555:52Full Moon28Thu
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