48.0583’ N, 122.6920’ W

Mystery Bay, Marrowstone Island, WA

63°
H 64°
L 53°
SSE
15mph
Low tide
2:42 pm

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

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently falling in Mystery Bay, Marrowstone Island, WA.
Next low tide : in 2h 30m at 2:42 pm (5.0 ft)
Next high tide : 8:16 pm (7.8 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:30 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #9444971
Common Questions About Tides

Mystery Bay, Marrowstone Island, WA Tides - Nov 1906

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:197.63:517.610:384.710:560.16:554:53Full Moon1Thu
2Fri6:027.84:157.411:215.211:28-0.26:564:52Full Moon2Fri
3Sat6:448.04:417.212:075.76:584:50Waning Gibbous3Sat
4Sun7:278.15:117.012:02-0.41:006.16:594:49Waning Gibbous4Sun
5Mon8:128.15:426.612:38-0.32:036.37:014:47Waning Gibbous5Mon
6Tue9:018.16:146.31:18-0.13:276.47:024:46Waning Gibbous6Tue
7Wed9:548.02:020.37:044:44Third Quarter7Wed
8Thu10:458.08:045.52:510.77:265.77:054:43Third Quarter8Thu
9Fri11:318.13:451.17:074:41Third Quarter9Fri
10Sat12:098.14:451.67:374.67:094:40Third Quarter10Sat
11Sun12:428.25:472.17:503.77:104:39Waning Crescent11Sun
12Mon12:325.51:138.26:472.68:142.57:124:37Waning Crescent12Mon
13Tue1:536.11:438.37:413.18:441.37:134:36Waning Crescent13Tue
14Wed3:026.82:148.48:323.79:190.07:154:35New Moon14Wed
15Thu4:017.52:478.59:214.39:57-1.27:164:34New Moon15Thu
16Fri4:578.13:228.510:104.910:39-2.07:184:32New Moon16Fri
17Sat5:518.63:598.411:015.611:23-2.57:194:31New Moon17Sat
18Sun6:458.94:408.211:576.07:214:30Waxing Crescent18Sun
19Mon7:419.05:257.812:10-2.51:016.37:224:29Waxing Crescent19Mon
20Tue8:399.06:177.212:59-2.12:176.47:244:28Waxing Crescent20Tue
21Wed9:379.07:186.51:52-1.43:536.17:254:27First Quarter21Wed
22Thu10:348.98:365.72:48-0.45:435.37:274:26First Quarter22Thu
23Fri11:268.810:165.23:470.76:554.47:284:25First Quarter23Fri
24Sat12:118.74:511.87:423.47:294:25First Quarter24Sat
25Sun12:185.312:518.55:572.98:172.57:314:24Waxing Gibbous25Sun
26Mon1:555.81:238.47:013.88:451.67:324:23Waxing Gibbous26Mon
27Tue3:046.51:488.27:594.69:100.97:344:22Waxing Gibbous27Tue
28Wed4:007.12:108.08:515.29:350.27:354:22Waxing Gibbous28Wed
29Thu4:477.72:317.89:385.810:02-0.37:364:21Full Moon29Thu
30Fri5:288.12:567.710:236.210:30-0.67:374:20Full Moon30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9444971)

Common Questions About Mystery Bay, Marrowstone Island, WA Tides

Collapse All
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 67% 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 Third Quarter (67% 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