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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 49m at 12:46 am (6.2 ft)
Next high tide : 5:12 am (7.6 ft)
Sunset today : 9:06 pm
Sunrise tomorrow : 5:27 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Mar 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:238.010:576.32:374.63:460.66:515:54Third Quarter1Wed
2Thu9:077.83:385.44:480.26:495:56Third Quarter2Thu
3Fri12:376.710:01 AM7.64:596.05:53-0.16:475:57Third Quarter3Fri
4Sat1:487.211:06 AM7.46:276.16:57-0.36:455:59Waning Crescent4Sat
5Sun2:387.712:187.37:415.87:55-0.46:436:00Waning Crescent5Sun
6Mon3:198.01:317.48:405.28:47-0.46:416:02Waning Crescent6Mon
7Tue3:548.32:397.49:294.49:34-0.16:396:03New Moon7Tue
8Wed4:278.43:417.510:143.610:180.46:376:05New Moon8Wed
9Thu4:588.54:387.510:572.811:021.06:356:06New Moon9Thu
10Fri5:278.45:337.411:412.211:451.96:336:08New Moon10Fri
11Sat5:558.36:287.212:251.66:316:09Waxing Crescent11Sat
12Sun6:248.17:266.912:292.81:101.36:296:11Waxing Crescent12Sun
13Mon6:547.88:306.71:153.71:561.16:276:12Waxing Crescent13Mon
14Tue7:277.59:496.62:064.52:441.16:256:14First Quarter14Tue
15Wed8:037.211:216.63:055.23:371.26:236:15First Quarter15Wed
16Thu8:456.84:185.74:341.36:216:17First Quarter16Thu
17Fri12:436.89:36 AM6.55:505.95:361.46:196:18First Quarter17Fri
18Sat1:437.110:39 AM6.37:215.86:371.46:176:20First Quarter18Sat
19Sun2:267.311:49 AM6.28:175.57:311.46:156:21Waxing Gibbous19Sun
20Mon2:587.412:586.38:505.18:171.46:136:23Waxing Gibbous20Mon
21Tue3:227.51:596.59:154.68:571.46:116:24Waxing Gibbous21Tue
22Wed3:417.62:536.79:403.99:341.56:096:26Full Moon22Wed
23Thu4:007.73:437.010:083.210:101.76:076:27Full Moon23Thu
24Fri4:227.84:327.210:392.410:472.16:056:28Full Moon24Fri
25Sat4:487.95:227.311:141.611:252.76:036:30Full Moon25Sat
26Sun5:178.06:147.411:530.86:016:31Waning Gibbous26Sun
27Mon5:497.97:107.312:063.312:360.25:586:33Waning Gibbous27Mon
28Tue6:237.88:127.212:514.01:23-0.35:566:34Waning Gibbous28Tue
29Wed7:017.69:247.11:414.72:14-0.55:546:36Waning Gibbous29Wed
30Thu7:447.410:457.22:415.33:11-0.45:526:37Third Quarter30Thu
31Fri8:377.03:565.74:13-0.25:506:39Third Quarter31Fri
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 2:59 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 3% 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 (3% 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