48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

60°
H 72°
L 54°
NW
4mph
Low tide
10:00 am

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

TIDE TIMES for Wednesday, September 9, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 1h 31m at 10:00 am (-0.7 ft)
Next high tide : 5:05 pm (8.1 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 6:40 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Nov 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:058.37:406.02:15-0.34:525.77:034:59Third Quarter1Wed
2Thu10:598.28:565.43:100.76:205.17:054:57Third Quarter2Thu
3Fri11:468.110:385.14:091.67:134.37:064:56Third Quarter3Fri
4Sat12:247.95:122.57:493.57:084:54Third Quarter4Sat
5Sun12:395.312:537.86:153.38:152.77:094:53Waning Crescent5Sun
6Mon2:045.81:147.77:144.08:371.97:114:51Waning Crescent6Mon
7Tue3:066.41:337.78:064.69:001.27:124:50Waning Crescent7Tue
8Wed3:546.91:557.78:515.19:240.47:144:49Waning Crescent8Wed
9Thu4:367.42:217.79:335.69:51-0.27:154:47New Moon9Thu
10Fri5:147.82:517.710:125.910:20-0.77:174:46New Moon10Fri
11Sat5:508.13:227.610:526.210:53-1.17:184:45New Moon11Sat
12Sun6:278.33:557.511:346.511:29-1.37:204:43New Moon12Sun
13Mon7:068.54:297.412:216.67:214:42Waxing Crescent13Mon
14Tue7:488.55:067.112:09-1.41:166.77:234:41Waxing Crescent14Tue
15Wed8:338.65:526.712:52-1.22:206.57:254:40Waxing Crescent15Wed
16Thu9:188.66:576.21:39-0.73:346.17:264:39First Quarter16Thu
17Fri10:018.58:215.72:290.04:475.37:284:38First Quarter17Fri
18Sat10:428.59:585.33:230.95:484.27:294:36First Quarter18Sat
19Sun11:218.611:475.44:231.96:372.97:304:35First Quarter19Sun
20Mon11:578.65:273.07:201.57:324:34Waxing Gibbous20Mon
21Tue1:346.012:338.66:344.18:020.27:334:34Waxing Gibbous21Tue
22Wed2:536.81:098.77:375.08:42-1.07:354:33Waxing Gibbous22Wed
23Thu3:557.71:468.78:375.79:22-1.97:364:32Full Moon23Thu
24Fri4:478.42:248.69:336.110:03-2.47:384:31Full Moon24Fri
25Sat5:358.83:058.310:276.510:44-2.57:394:30Full Moon25Sat
26Sun6:219.13:488.011:236.611:27-2.27:404:29Waning Gibbous26Sun
27Mon7:069.24:337.612:246.67:424:29Waning Gibbous27Mon
28Tue7:509.15:217.112:10-1.71:326.47:434:28Waning Gibbous28Tue
29Wed8:349.06:136.412:55-0.92:516.07:444:28Waning Gibbous29Wed
30Thu9:158.87:145.81:410.04:165.57:464:27Third Quarter30Thu
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 2% 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 (2% 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