Tides Today & Tomorrow in Rosario, East Sound, Orcas Island, WA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently rising in Rosario, East Sound, Orcas Island, WA.
Next low tide (tomorrow) : 4:11 am (3.4 ft)
Next high tide : in 4h 58m at 9:38 pm (8.3 ft)
Sunset today : 9:06 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9449771
Common Questions About Tides

Rosario, East Sound, Orcas Island, WA Tides - Jan 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:155.311:10 AM8.04:135.17:301.38:034:26Waxing Gibbous1Tue
2Wed11:288.08:000.48:034:27Waxing Gibbous2Wed
3Thu4:287.111:54 AM8.16:446.98:31-0.48:034:28Waxing Gibbous3Thu
4Fri5:097.812:258.28:097.49:05-1.18:034:29Waxing Gibbous4Fri
5Sat5:468.41:008.29:237.79:41-1.68:034:30Full Moon5Sat
6Sun6:218.91:378.210:317.810:19-2.08:034:31Full Moon6Sun
7Mon6:569.22:178.111:277.810:57-2.18:024:33Full Moon7Mon
8Tue7:319.33:047.912:197.68:024:34Full Moon8Tue
9Wed8:059.44:017.41:177.18:014:35Waning Gibbous9Wed
10Thu8:359.35:076.812:15-1.42:196.48:014:36Waning Gibbous10Thu
11Fri9:019.16:216.012:55-0.53:145.48:014:38Waning Gibbous11Fri
12Sat9:238.98:005.21:370.74:044.28:004:39Third Quarter12Sat
13Sun9:428.810:404.92:192.14:542.87:594:40Third Quarter13Sun
14Mon10:018.73:023.75:471.57:594:42Third Quarter14Mon
15Tue1:085.610:23 AM8.73:475.16:380.27:584:43Waning Crescent15Tue
16Wed2:476.610:51 AM8.74:426.47:28-0.87:574:45Waning Crescent16Wed
17Thu4:027.511:26 AM8.76:167.48:14-1.57:564:46Waning Crescent17Thu
18Fri4:538.312:098.68:107.88:59-1.97:564:48Waning Crescent18Fri
19Sat5:338.712:568.49:377.89:43-2.07:554:49New Moon19Sat
20Sun6:089.01:458.110:447.610:24-1.87:544:51New Moon20Sun
21Mon6:429.02:337.811:367.311:02-1.57:534:52New Moon21Mon
22Tue7:149.03:257.312:256.97:524:54New Moon22Tue
23Wed7:458.84:196.81:146.37:514:55Waxing Crescent23Wed
24Thu8:138.65:146.312:09-0.22:065.77:504:57Waxing Crescent24Thu
25Fri8:388.46:115.712:400.72:535.07:494:58Waxing Crescent25Fri
26Sat8:568.17:235.11:101.63:354.37:485:00Waxing Crescent26Sat
27Sun9:067.99:334.71:412.74:153.47:465:01First Quarter27Sun
28Mon9:127.82:133.84:562.67:455:03First Quarter28Mon
29Tue12:205.09:24 AM7.72:454.85:411.87:445:05First Quarter29Tue
30Wed9:447.86:271.07:435:06First Quarter30Wed
31Thu10:127.87:110.37:415:08Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9449771)

Common Questions About Rosario, East Sound, Orcas Island, WA Tides

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What time does the tide turn (slack tide) in Rosario, East Sound, Orcas Island, WA today?

Slack tide in Rosario, East Sound, Orcas Island, WA is approximately 12:54 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 Rosario, East Sound, Orcas Island, WA?

Rosario, East Sound, Orcas Island, WA is currently in a transitional phase. Tonight's moon is 24% 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 Rosario, East Sound, Orcas 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 Rosario, East Sound, Orcas Island, WA?

Tide predictions for Rosario, East Sound, Orcas 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 Rosario, East Sound, Orcas Island, WA?

Tide data for Rosario, East Sound, Orcas Island, WA is sourced from NOAA Station #9449771. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9449771.

What is the moon phase in Rosario, East Sound, Orcas Island, WA tonight?

Tonight the moon over Rosario, East Sound, Orcas Island, WA is Waxing Crescent (24% illuminated). This places Rosario, East Sound, Orcas 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