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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide (tomorrow) : 8:01 am (-1.3 ft)
Next high tide : in 4h 05m at 11:44 pm (8.3 ft)
Sunset today : 9:10 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - May 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:488.02:315.99:223.28:521.65:518:23Waxing Gibbous1Wed
2Thu3:138.13:536.59:561.69:422.55:498:25Waxing Gibbous2Thu
3Fri3:388.25:057.110:330.010:303.65:488:26Full Moon3Fri
4Sat4:058.36:097.711:12-1.411:194.65:468:28Full Moon4Sat
5Sun4:348.47:098.211:54-2.45:458:29Full Moon5Sun
6Mon5:058.38:098.512:115.512:38-2.95:438:30Waning Gibbous6Mon
7Tue5:398.09:118.61:076.21:24-3.05:428:32Waning Gibbous7Tue
8Wed6:167.610:148.62:146.72:13-2.55:408:33Waning Gibbous8Wed
9Thu6:577.011:178.53:406.83:05-1.85:398:35Waning Gibbous9Thu
10Fri7:476.36:016.54:02-0.85:378:36Third Quarter10Fri
11Sat12:168.48:59 AM5.67:495.85:020.25:368:37Third Quarter11Sat
12Sun1:078.310:36 AM5.08:394.96:061.15:358:39Third Quarter12Sun
13Mon1:498.112:374.89:134.17:092.05:338:40Waning Crescent13Mon
14Tue2:228.02:325.09:393.28:072.95:328:41Waning Crescent14Tue
15Wed2:467.83:515.69:582.28:583.75:318:43Waning Crescent15Wed
16Thu3:017.64:516.210:171.39:444.55:298:44Waning Crescent16Thu
17Fri3:137.55:416.710:370.510:275.25:288:45Waning Crescent17Fri
18Sat3:287.46:257.311:01-0.311:095.85:278:46New Moon18Sat
19Sun3:477.47:057.711:27-1.011:526.35:268:48New Moon19Sun
20Mon4:107.37:457.911:57-1.45:258:49New Moon20Mon
21Tue4:327.28:258.112:376.712:30-1.75:248:50New Moon21Tue
22Wed4:467.19:098.21:286.91:08-1.85:238:51Waxing Crescent22Wed
23Thu4:186.99:558.32:287.11:49-1.75:228:52Waxing Crescent23Thu
24Fri4:096.810:438.33:507.12:35-1.55:218:54Waxing Crescent24Fri
25Sat11:288.33:25-1.15:208:55First Quarter25Sat
26Sun4:17-0.55:198:56First Quarter26Sun
27Mon12:068.39:28 AM5.38:135.45:130.35:188:57First Quarter27Mon
28Tue12:398.311:27 AM4.97:514.36:121.35:178:58First Quarter28Tue
29Wed1:088.31:205.08:192.87:122.45:168:59Waxing Gibbous29Wed
30Thu1:368.33:075.68:541.28:123.65:169:00Waxing Gibbous30Thu
31Fri2:048.44:276.69:31-0.49:094.75:159:01Waxing Gibbous31Fri
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 3:52 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 transitional phase. Tonight's moon is 28% 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 Waning Crescent (28% 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