48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

65°
H 66°
L 52°
SSE
17mph
Low tide
2:42 pm

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

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 32m at 2:42 pm (5.0 ft)
Next high tide : 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 - Sep 1906

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:547.24:278.19:14-0.99:534.65:276:53Full Moon1Sat
2Sun2:547.25:008.19:58-0.610:354.15:296:51Full Moon2Sun
3Mon3:507.25:298.010:390.011:163.55:306:49Full Moon3Mon
4Tue4:427.15:557.911:200.611:582.95:316:47Waning Gibbous4Tue
5Wed5:336.96:207.712:011.55:336:45Waning Gibbous5Wed
6Thu6:266.76:457.512:402.412:442.45:346:43Waning Gibbous6Thu
7Fri7:226.47:137.31:242.01:283.35:356:41Waning Gibbous7Fri
8Sat8:266.27:437.12:101.72:184.25:376:39Third Quarter8Sat
9Sun9:496.18:176.82:581.53:175.05:386:37Third Quarter9Sun
10Mon11:366.38:576.53:491.44:335.65:406:35Third Quarter10Mon
11Tue1:016.64:461.36:065.85:416:33Third Quarter11Tue
12Wed1:586.95:451.17:295.85:426:31Third Quarter12Wed
13Thu2:397.26:431.08:185.65:446:29Waning Crescent13Thu
14Fri3:107.47:350.78:475.35:456:27Waning Crescent14Fri
15Sat12:506.43:347.58:200.59:124.95:466:25Waning Crescent15Sat
16Sun1:486.73:577.69:010.39:404.35:486:23New Moon16Sun
17Mon2:437.04:197.89:410.310:113.55:496:21New Moon17Mon
18Tue3:377.24:447.910:190.610:472.75:516:18New Moon18Tue
19Wed4:317.35:127.910:591.111:281.85:526:16New Moon19Wed
20Thu5:267.45:438.011:411.85:536:14Waxing Crescent20Thu
21Fri6:257.36:167.912:121.012:262.75:556:12Waxing Crescent21Fri
22Sat7:307.26:517.81:000.31:153.75:566:10Waxing Crescent22Sat
23Sun8:437.07:317.51:52-0.22:114.65:576:08First Quarter23Sun
24Mon10:097.08:177.22:48-0.43:205.45:596:06First Quarter24Mon
25Tue11:387.29:146.83:49-0.44:475.86:006:04First Quarter25Tue
26Wed12:517.54:56-0.26:245.76:026:02First Quarter26Wed
27Thu1:487.86:050.07:435.26:036:00Waxing Gibbous27Thu
28Fri2:338.07:090.28:344.66:045:58Waxing Gibbous28Fri
29Sat1:066.43:118.18:060.59:123.96:065:56Waxing Gibbous29Sat
30Sun2:186.63:438.08:550.99:463.26:075:54Full Moon30Sun
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