Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Friday Harbor, WA.
Next low tide : 4:04 pm (4.4 ft)
Next high tide : in 1h 47m at 1:18 pm (4.7 ft)
Sunset today : 9:03 pm
Sunrise tomorrow : 5:33 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9449880
Common Questions About Tides

Friday Harbor, WA Tides - Mar 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:347.26:180.06:525:55First Quarter1Fri
2Sat4:027.67:15-0.46:505:57Waxing Gibbous2Sat
3Sun4:277.88:07-0.96:485:59Waxing Gibbous3Sun
4Mon4:507.912:417.09:266.68:55-1.16:466:00Waxing Gibbous4Mon
5Tue5:127.92:027.09:526.09:39-1.16:446:02Full Moon5Tue
6Wed5:337.93:186.910:285.110:21-0.76:426:03Full Moon6Wed
7Thu5:537.94:326.711:104.011:030.16:406:05Full Moon7Thu
8Fri6:137.95:476.611:552.811:441.26:386:06Waning Gibbous8Fri
9Sat6:337.97:036.412:421.66:366:08Waning Gibbous9Sat
10Sun6:537.98:256.412:262.61:310.66:346:09Waning Gibbous10Sun
11Mon7:157.910:026.51:104.02:23-0.16:326:11Waning Gibbous11Mon
12Tue7:377.811:496.81:585.33:18-0.56:306:12Third Quarter12Tue
13Wed8:027.63:026.34:17-0.66:286:14Third Quarter13Wed
14Thu1:287.48:29 AM7.34:556.95:21-0.66:266:15Third Quarter14Thu
15Fri2:347.86:27-0.46:246:17Waning Crescent15Fri
16Sat3:218.07:30-0.26:226:18Waning Crescent16Sat
17Sun3:598.012:226.09:375.88:240.06:206:20Waning Crescent17Sun
18Mon4:307.81:595.910:065.29:090.36:186:21Waning Crescent18Mon
19Tue4:577.63:105.910:334.59:470.86:166:23New Moon19Tue
20Wed5:177.44:105.910:583.810:211.36:136:24New Moon20Wed
21Thu5:327.25:065.911:223.110:532.06:116:26New Moon21Thu
22Fri5:437.15:596.011:472.411:252.86:096:27New Moon22Fri
23Sat5:517.06:526.112:141.76:076:29Waxing Crescent23Sat
24Sun6:016.97:486.212:431.16:056:30Waxing Crescent24Sun
25Mon6:146.98:506.412:324.51:150.66:036:32Waxing Crescent25Mon
26Tue6:286.810:066.51:095.31:520.36:016:33Waxing Crescent26Tue
27Wed6:406.811:366.81:515.92:350.15:596:35First Quarter27Wed
28Thu6:426.82:496.53:250.05:576:36First Quarter28Thu
29Fri1:117.04:230.05:556:38First Quarter29Fri
30Sat2:127.35:26-0.15:536:39First Quarter30Sat
31Sun2:497.46:30-0.25:516:41Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9449880)

Common Questions About Friday Harbor, WA Tides

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What time does the tide turn (slack tide) in Friday Harbor, WA today?

Slack tide in Friday Harbor, WA is approximately 2:41 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 Friday Harbor, WA?

Friday Harbor, WA is currently in a neap phase. Tonight's moon is 53% 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 minimum.

What datum are Friday Harbor, 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 Friday Harbor, WA?

Tide predictions for Friday Harbor, 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 Friday Harbor, WA?

Tide data for Friday Harbor, WA is sourced from NOAA Station #9449880. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9449880.

What is the moon phase in Friday Harbor, WA tonight?

Tonight the moon over Friday Harbor, WA is First Quarter (53% illuminated). This places Friday Harbor, WA in a neap tide cycle, so tidal ranges are near their weekly minimum 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