48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

65°
H -°
L 53°
SSE
5mph
High tide
5:53 pm

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

TIDE TIMES for Friday, September 11, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide (tomorrow) : 12:04 am (2.3 ft)
Next high tide : in 1h 53m at 5:53 pm (8.0 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 6:42 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - May 1880

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:285.911:418.15:155.63:590.04:577:31Third Quarter1Sat
2Sun10:045.36:424.65:031.14:567:32Third Quarter2Sun
3Mon12:248.112:025.27:353.56:082.24:547:34Waning Crescent3Mon
4Tue1:018.01:475.58:142.47:093.24:537:35Waning Crescent4Tue
5Wed1:317.93:036.28:451.38:054.14:517:37Waning Crescent5Wed
6Thu1:557.74:036.89:120.48:564.84:497:38Waning Crescent6Thu
7Fri2:167.64:537.49:40-0.39:445.44:487:39New Moon7Fri
8Sat2:377.55:377.710:08-0.910:305.94:467:41New Moon8Sat
9Sun3:017.36:188.010:39-1.211:166.24:457:42New Moon9Sun
10Mon3:297.26:588.111:12-1.44:447:43New Moon10Mon
11Tue4:017.07:378.112:056.411:48 AM-1.34:427:45Waxing Crescent11Tue
12Wed4:366.88:178.012:596.512:26-1.14:417:46Waxing Crescent12Wed
13Thu5:126.68:578.02:006.51:07-0.84:407:47Waxing Crescent13Thu
14Fri5:526.29:377.93:136.31:50-0.44:387:49Waxing Crescent14Fri
15Sat6:425.810:147.94:386.02:350.24:377:50First Quarter15Sat
16Sun7:525.410:477.85:465.43:230.84:367:51First Quarter16Sun
17Mon9:184.911:177.86:174.74:141.64:347:53First Quarter17Mon
18Tue10:544.811:467.86:423.75:092.54:337:54First Quarter18Tue
19Wed12:405.17:112.46:093.44:327:55Waxing Gibbous19Wed
20Thu12:147.92:175.87:431.17:084.34:317:56Waxing Gibbous20Thu
21Fri12:448.03:276.68:18-0.48:055.14:307:57Waxing Gibbous21Fri
22Sat1:168.24:247.58:57-1.78:595.84:297:59Full Moon22Sat
23Sun1:518.35:158.19:38-2.79:526.34:288:00Full Moon23Sun
24Mon2:308.36:048.510:22-3.410:466.64:278:01Full Moon24Mon
25Tue3:148.26:528.711:08-3.611:446.74:268:02Full Moon25Tue
26Wed4:058.07:418.811:57-3.34:258:03Waning Gibbous26Wed
27Thu5:007.58:298.812:506.512:47-2.74:248:04Waning Gibbous27Thu
28Fri6:026.99:168.72:076.11:39-1.84:248:05Waning Gibbous28Fri
29Sat7:116.110:008.63:345.42:31-0.64:238:06Third Quarter29Sat
30Sun8:335.310:418.45:004.43:250.84:228:07Third Quarter30Sun
31Mon10:214.811:178.36:083.34:212.24:218:08Third Quarter31Mon
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 1% 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 New Moon (1% 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