48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

64°
H -°
L 54°
NW
8mph
High tide
7:20 pm

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

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently rising in Mystery Bay, Marrowstone Island, WA.
Next low tide (tomorrow) : 2:47 am (0.1 ft)
Next high tide : in 1h 29m at 7:20 pm (7.3 ft)
Sunset today : 7:23 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waxing Crescent (22% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Jun 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:418.34:127.29:06-1.29:025.04:218:08Full Moon1Thu
2Fri2:138.45:097.99:46-2.49:555.74:218:09Full Moon2Fri
3Sat2:488.46:038.410:29-3.210:506.24:208:10Full Moon3Sat
4Sun3:278.36:558.811:14-3.511:496.64:208:11Full Moon4Sun
5Mon4:118.07:488.912:02-3.44:198:12Waning Gibbous5Mon
6Tue5:007.58:418.912:586.612:52-2.94:198:13Waning Gibbous6Tue
7Wed5:556.99:338.82:196.41:44-2.04:188:14Waning Gibbous7Wed
8Thu6:596.110:228.73:585.92:38-0.94:188:14Third Quarter8Thu
9Fri8:175.311:078.55:355.03:330.34:178:15Third Quarter9Fri
10Sat9:564.711:468.36:404.04:311.64:178:16Third Quarter10Sat
11Sun12:084.77:262.95:312.84:178:16Third Quarter11Sun
12Mon12:198.11:555.28:011.96:333.94:178:17Waning Crescent12Mon
13Tue12:467.93:106.08:291.07:344.94:178:18Waning Crescent13Tue
14Wed1:077.74:076.78:540.28:315.64:168:18Waning Crescent14Wed
15Thu1:287.64:547.39:20-0.59:236.14:168:19Waning Crescent15Thu
16Fri1:517.45:357.89:47-1.010:126.54:168:19New Moon16Fri
17Sat2:187.36:118.010:17-1.410:596.74:168:19New Moon17Sat
18Sun2:487.26:468.210:49-1.611:476.84:168:20New Moon18Sun
19Mon3:217.17:198.311:23-1.64:178:20New Moon19Mon
20Tue3:566.97:538.312:396.812:01-1.54:178:20Waxing Crescent20Tue
21Wed4:326.68:268.41:366.712:40-1.34:178:21Waxing Crescent21Wed
22Thu5:116.39:008.42:396.41:21-1.04:178:21Waxing Crescent22Thu
23Fri6:065.99:338.43:426.02:04-0.44:178:21Waxing Crescent23Fri
24Sat7:225.310:058.34:345.32:490.34:188:21First Quarter24Sat
25Sun8:514.910:378.35:174.43:361.34:188:21First Quarter25Sun
26Mon10:304.611:088.35:573.24:292.44:198:21First Quarter26Mon
27Tue12:274.96:371.95:303.64:198:21Waxing Gibbous27Tue
28Wed2:145.77:170.46:354.74:198:21Waxing Gibbous28Wed
29Thu12:128.43:276.77:59-1.07:405.64:208:21Waxing Gibbous29Thu
30Fri12:488.44:237.68:42-2.28:416.24:208:21Waxing Gibbous30Fri
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 transitional phase. Tonight's moon is 22% 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 Waxing Crescent (22% 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