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

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Rosario, East Sound, Orcas Island, WA.
Next low tide (tomorrow) : 1:13 am (5.7 ft)
Next high tide : in 3h 18m at 7:58 pm (8.1 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:43 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9449771
Common Questions About Tides

Rosario, East Sound, Orcas Island, WA Tides - Aug 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:557.57:140.25:458:50Waxing Gibbous1Sun
2Mon11:387.58:03-0.55:468:48Waxing Gibbous2Mon
3Tue5:457.68:48-1.19:067.15:478:47Waxing Gibbous3Tue
4Wed12:367.56:117.99:32-1.610:166.95:498:45Waxing Gibbous4Wed
5Thu1:417.56:378.210:14-1.911:096.55:508:44Full Moon5Thu
6Fri2:467.37:028.310:56-1.911:555.95:518:42Full Moon6Fri
7Sat3:527.17:248.211:37-1.65:538:41Full Moon7Sat
8Sun5:046.87:448.112:395.012:17-0.85:548:39Waning Gibbous8Sun
9Mon6:196.38:038.01:243.912:570.35:558:37Waning Gibbous9Mon
10Tue7:375.98:208.02:132.81:361.75:578:36Waning Gibbous10Tue
11Wed9:145.68:398.03:061.72:163.15:588:34Third Quarter11Wed
12Thu11:095.59:018.04:020.72:574.56:008:32Third Quarter12Thu
13Fri1:075.94:58-0.13:425.66:018:31Third Quarter13Fri
14Sat2:496.65:58-0.74:346.56:028:29Third Quarter14Sat
15Sun3:587.17:02-1.15:597.06:048:27Waning Crescent15Sun
16Mon4:457.58:03-1.38:507.06:058:25Waning Crescent16Mon
17Tue5:217.78:57-1.39:586.76:078:24Waning Crescent17Tue
18Wed1:017.15:517.89:43-1.310:486.26:088:22Waning Crescent18Wed
19Thu2:156.86:187.810:25-1.011:295.66:098:20New Moon19Thu
20Fri3:186.66:437.711:02-0.66:118:18New Moon20Fri
21Sat4:206.37:047.612:055.011:35 AM0.06:128:16New Moon21Sat
22Sun5:206.17:227.412:384.312:050.76:148:14New Moon22Sun
23Mon6:185.87:357.21:093.712:341.56:158:12Waxing Crescent23Mon
24Tue7:135.67:427.11:413.01:032.36:168:10Waxing Crescent24Tue
25Wed8:165.47:497.02:152.41:333.26:188:08Waxing Crescent25Wed
26Thu9:405.38:006.92:541.92:044.16:198:06Waxing Crescent26Thu
27Fri11:265.48:176.93:361.42:384.96:218:04First Quarter27Fri
28Sat1:245.74:231.03:195.66:228:02First Quarter28Sat
29Sun9:077.05:140.66:238:00First Quarter29Sun
30Mon3:376.86:110.25:426.76:257:58First Quarter30Mon
31Tue4:127.27:12-0.38:256.76:267:56Waxing Gibbous31Tue
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 10:35 pm — 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 spring phase. Tonight's moon is 99% 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 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 Full Moon (99% illuminated). This places Rosario, East Sound, Orcas 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