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

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Rosario, East Sound, Orcas Island, WA.
Next low tide (tomorrow) : in 5h 06m at 1:49 am (5.0 ft)
Next high tide (tomorrow) : 5:39 am (5.9 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9449771
Common Questions About Tides

Rosario, East Sound, Orcas Island, WA Tides - Jul 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:517.98:549.112:527.512:27-3.45:139:17Waning Gibbous1Tue
2Wed4:547.39:309.02:006.91:13-2.65:139:17Waning Gibbous2Wed
3Thu6:046.510:028.83:126.01:56-1.55:149:16Waning Gibbous3Thu
4Fri7:205.510:318.54:164.92:39-0.15:159:16Third Quarter4Fri
5Sat9:074.610:568.35:123.73:191.55:159:16Third Quarter5Sat
6Sun11:404.311:168.16:042.43:563.05:169:15Third Quarter6Sun
7Mon1:534.76:551.34:294.35:179:15Third Quarter7Mon
8Tue11:457.97:410.35:189:14Waning Crescent8Tue
9Wed8:23-0.45:199:14Waning Crescent9Wed
10Thu12:057.89:02-1.05:209:13Waning Crescent10Thu
11Fri12:327.76:287.69:39-1.49:507.25:219:12Waning Crescent11Fri
12Sat1:077.66:577.910:15-1.611:087.25:229:12New Moon12Sat
13Sun1:477.57:268.110:50-1.75:239:11New Moon13Sun
14Mon2:287.37:568.212:057.111:24 AM-1.75:249:10New Moon14Mon
15Tue3:097.18:258.312:516.911:56 AM-1.65:259:09New Moon15Tue
16Wed3:536.78:528.21:376.612:27-1.35:269:08Waxing Crescent16Wed
17Thu4:446.39:168.12:266.112:57-0.85:279:07Waxing Crescent17Thu
18Fri5:435.89:338.03:145.61:27-0.15:289:06Waxing Crescent18Fri
19Sat6:465.29:437.83:534.81:580.85:299:05Waxing Crescent19Sat
20Sun8:014.69:497.74:253.92:301.85:309:04First Quarter20Sun
21Mon9:514.39:597.74:592.93:053.05:319:03First Quarter21Mon
22Tue12:564.55:371.73:434.25:339:02First Quarter22Tue
23Wed10:438.06:230.65:349:01First Quarter23Wed
24Thu11:168.17:14-0.55:359:00Waxing Gibbous24Thu
25Fri5:187.58:06-1.67:177.35:368:59Waxing Gibbous25Fri
26Sat5:568.18:58-2.49:047.65:378:57Waxing Gibbous26Sat
27Sun12:568.36:318.59:49-3.010:277.55:398:56Full Moon27Sun
28Mon2:018.27:048.710:39-3.211:347.05:408:55Full Moon28Mon
29Tue3:067.97:358.711:27-2.95:418:53Full Moon29Tue
30Wed4:157.48:058.612:306.312:12-2.25:438:52Waning Gibbous30Wed
31Thu5:306.88:328.41:235.412:54-1.25:448:51Waning 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 3:44 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 spring phase. Tonight's moon is 95% 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 Waning Gibbous (95% 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