Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Friday Harbor, WA.
Next low tide : in 11m at 2:15 am (5.4 ft)
Next high tide : 6:09 am (6.3 ft)
Sunset today : 9:07 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #9449880
Common Questions About Tides

Friday Harbor, WA Tides - Oct 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:326.04:317.49:311.510:332.27:126:50Full Moon1Fri
2Sat4:476.34:527.310:172.311:081.37:136:48Full Moon2Sat
3Sun5:546.65:117.311:023.211:430.47:156:46Full Moon3Sun
4Mon6:547.05:287.211:464.17:166:44Full Moon4Mon
5Tue7:497.25:467.112:18-0.112:334.97:186:42Waning Gibbous5Tue
6Wed8:447.46:076.912:53-0.41:235.57:196:40Waning Gibbous6Wed
7Thu9:407.56:306.71:30-0.52:205.97:216:38Waning Gibbous7Thu
8Fri10:407.46:566.52:10-0.33:396.27:226:36Waning Gibbous8Fri
9Sat11:437.32:530.07:246:34Third Quarter9Sat
10Sun12:457.23:420.47:256:32Third Quarter10Sun
11Mon1:397.24:380.87:276:30Third Quarter11Mon
12Tue2:207.15:371.28:544.97:286:28Third Quarter12Tue
13Wed2:497.06:361.69:144.37:306:26Waning Crescent13Wed
14Thu12:545.03:107.07:332.09:323.67:316:24Waning Crescent14Thu
15Fri2:335.23:267.08:242.49:502.87:336:22Waning Crescent15Fri
16Sat3:485.63:407.09:103.010:111.87:346:20Waning Crescent16Sat
17Sun4:516.13:557.19:533.610:370.87:366:18New Moon17Sun
18Mon5:506.74:137.210:344.311:09-0.27:376:16New Moon18Mon
19Tue6:457.34:337.411:185.011:46-1.07:396:14New Moon19Tue
20Wed7:387.74:597.512:045.77:406:12New Moon20Wed
21Thu8:338.05:287.512:27-1.612:536.27:426:10Waxing Crescent21Thu
22Fri9:328.16:027.41:11-1.91:496.67:436:09Waxing Crescent22Fri
23Sat10:358.16:417.22:00-1.82:586.77:456:07Waxing Crescent23Sat
24Sun11:378.07:286.72:53-1.44:526.57:466:05First Quarter24Sun
25Mon12:338.03:50-0.87:486:03First Quarter25Mon
26Tue1:207.94:520.07:494.97:496:01First Quarter26Tue
27Wed1:597.85:550.98:333.87:516:00Waxing Gibbous27Wed
28Thu1:065.02:317.86:591.99:102.67:525:58Waxing Gibbous28Thu
29Fri3:015.32:577.78:032.99:431.47:545:56Waxing Gibbous29Fri
30Sat4:246.03:187.69:023.910:150.47:565:55Waxing Gibbous30Sat
31Sun5:316.73:367.59:574.810:45-0.37:575:53Full Moon31Sun
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 4:12 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 Friday Harbor, WA?

Friday Harbor, WA is currently in a spring phase. Tonight's moon is 15% 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 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 Waxing Crescent (15% illuminated). This places Friday Harbor, 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