48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

57°
H 68°
L 54°
NW
4mph
Low tide
12:06 pm

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

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 3h 25m at 12:06 pm (1.8 ft)
Next high tide : 6:13 pm (7.9 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 6:44 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Dec 1878

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:478.69:334.93:121.46:314.47:474:27First Quarter1Sun
2Mon11:158.44:032.77:073.37:484:26First Quarter2Mon
3Tue12:064.911:36 AM8.24:593.97:352.37:494:26Waxing Gibbous3Tue
4Wed2:045.511:54 AM8.16:025.18:001.37:504:25Waxing Gibbous4Wed
5Thu3:186.412:148.07:086.08:250.57:524:25Waxing Gibbous5Thu
6Fri4:097.312:377.98:116.78:52-0.37:534:25Waxing Gibbous6Fri
7Sat4:507.91:037.99:067.29:20-0.97:544:24Waxing Gibbous7Sat
8Sun5:258.41:317.99:547.59:51-1.47:554:24Full Moon8Sun
9Mon5:588.72:007.810:387.710:26-1.77:564:24Full Moon9Mon
10Tue6:318.92:287.811:207.711:03-1.97:574:24Full Moon10Tue
11Wed7:049.02:577.712:057.77:584:24Waning Gibbous11Wed
12Thu7:389.13:367.412:577.57:594:24Waning Gibbous12Thu
13Fri8:129.14:397.012:25-1.71:587.18:004:24Waning Gibbous13Fri
14Sat8:459.16:036.41:08-1.13:056.48:004:24Waning Gibbous14Sat
15Sun9:179.17:355.71:52-0.34:095.48:014:25Third Quarter15Sun
16Mon9:489.19:175.12:380.95:044.08:024:25Third Quarter16Mon
17Tue10:189.011:255.13:252.35:532.58:034:25Third Quarter17Tue
18Wed10:489.04:193.96:391.08:034:25Waning Crescent18Wed
19Thu1:395.911:19 AM9.05:255.47:23-0.58:044:26Waning Crescent19Thu
20Fri3:037.011:52 AM9.06:416.68:06-1.68:044:26Waning Crescent20Fri
21Sat4:018.112:298.97:567.38:49-2.48:054:27Waning Crescent21Sat
22Sun4:488.81:128.89:037.79:32-2.88:054:27New Moon22Sun
23Mon5:319.31:598.610:037.810:15-2.98:064:28New Moon23Mon
24Tue6:119.42:528.311:007.610:58-2.68:064:28New Moon24Tue
25Wed6:499.53:457.911:587.311:41-2.08:074:29Waxing Crescent25Wed
26Thu7:279.44:407.412:596.88:074:30Waxing Crescent26Thu
27Fri8:019.25:356.812:24-1.22:046.28:074:30Waxing Crescent27Fri
28Sat8:339.06:356.11:06-0.23:085.58:074:31Waxing Crescent28Sat
29Sun9:008.97:455.41:470.94:084.68:084:32First Quarter29Sun
30Mon9:248.79:174.92:262.25:003.78:084:33First Quarter30Mon
31Tue9:458.53:043.65:452.68:084:34First Quarter31Tue
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 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