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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide : 12:51 pm (-2.3 ft)
Next high tide : in 3h 49m at 5:12 am (7.6 ft)
Sunset today : 9:05 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Feb 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:478.43:404.85:290.97:385:10Third Quarter1Wed
2Thu1:006.110:31 AM8.34:525.76:270.07:375:12Waning Crescent2Thu
3Fri2:196.911:22 AM8.36:176.37:23-0.77:355:13Waning Crescent3Fri
4Sat3:117.612:208.27:346.48:15-1.37:345:15Waning Crescent4Sat
5Sun3:538.21:228.28:386.29:04-1.67:325:16Waning Crescent5Sun
6Mon4:318.62:258.29:345.89:51-1.67:315:18New Moon6Mon
7Tue5:078.83:258.010:265.210:36-1.37:295:20New Moon7Tue
8Wed5:419.04:247.811:174.611:20-0.77:285:21New Moon8Wed
9Thu6:149.05:227.412:094.07:265:23Waxing Crescent9Thu
10Fri6:479.06:207.012:040.21:013.37:255:24Waxing Crescent10Fri
11Sat7:198.87:236.512:481.21:552.87:235:26Waxing Crescent11Sat
12Sun7:518.68:366.11:342.42:492.37:225:28Waxing Crescent12Sun
13Mon8:248.310:145.92:213.63:441.97:205:29First Quarter13Mon
14Tue8:597.93:144.64:421.77:185:31First Quarter14Tue
15Wed12:086.19:38 AM7.64:215.65:411.47:175:32First Quarter15Wed
16Thu1:376.610:23 AM7.35:466.26:391.27:155:34First Quarter16Thu
17Fri2:377.111:15 AM7.17:176.47:310.97:135:35Waxing Gibbous17Fri
18Sat3:217.512:127.08:276.38:160.77:115:37Waxing Gibbous18Sat
19Sun3:557.81:097.09:126.18:550.57:105:39Waxing Gibbous19Sun
20Mon4:227.92:027.19:445.89:310.47:085:40Waxing Gibbous20Mon
21Tue4:448.02:517.210:125.410:050.47:065:42Full Moon21Tue
22Wed5:038.13:397.210:424.910:380.57:045:43Full Moon22Wed
23Thu5:228.24:267.211:144.311:120.87:025:45Full Moon23Thu
24Fri5:448.35:147.111:493.711:481.37:015:46Full Moon24Fri
25Sat6:118.36:056.912:283.06:595:48Waning Gibbous25Sat
26Sun6:408.37:006.712:252.01:112.26:575:50Waning Gibbous26Sun
27Mon7:118.38:036.51:042.81:581.66:555:51Waning Gibbous27Mon
28Tue7:458.29:196.31:473.72:491.06:535:53Third Quarter28Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9444971)

Common Questions About Mystery Bay, Marrowstone Island, WA Tides

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What time does the tide turn (slack tide) in Mystery Bay, Marrowstone Island, WA today?

Slack tide in Mystery Bay, Marrowstone Island, WA is approximately 9:01 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 8% 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 Waxing Crescent (8% 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