Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Friday Harbor, WA.
Next low tide (tomorrow) : 1:49 am (5.0 ft)
Next high tide : in 6h 59m at 8:28 pm (7.6 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9449880
Common Questions About Tides

Friday Harbor, WA Tides - Sep 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:497.56:41-0.88:186.86:307:53Waxing Gibbous1Tue
2Wed4:327.77:47-0.89:316.46:317:51Waxing Gibbous2Wed
3Thu12:126.75:087.78:47-0.710:155.86:337:49Waxing Gibbous3Thu
4Fri1:446.45:397.69:37-0.410:515.26:347:46Waxing Gibbous4Fri
5Sat3:066.26:047.410:19-0.111:234.56:367:44Full Moon5Sat
6Sun4:136.16:247.210:560.511:543.86:377:42Full Moon6Sun
7Mon5:146.06:397.011:301.26:387:40Full Moon7Mon
8Tue6:126.06:506.912:233.012:032.06:407:38Full Moon8Tue
9Wed7:096.06:586.812:522.312:352.96:417:36Waning Gibbous9Wed
10Thu8:066.07:096.81:221.71:093.86:437:34Waning Gibbous10Thu
11Fri9:066.17:226.81:551.11:454.66:447:32Waning Gibbous11Fri
12Sat10:176.27:386.72:300.82:235.46:457:30Waning Gibbous12Sat
13Sun11:446.47:536.73:110.63:096.06:477:28Third Quarter13Sun
14Mon1:276.63:590.54:206.46:487:26Third Quarter14Mon
15Tue2:516.94:540.46:507:23Third Quarter15Tue
16Wed3:377.15:560.36:517:21Third Quarter16Wed
17Thu4:077.27:000.16:527:19Waning Crescent17Thu
18Fri4:307.27:59-0.19:385.76:547:17Waning Crescent18Fri
19Sat1:026.24:497.28:51-0.19:584.96:557:15Waning Crescent19Sat
20Sun2:326.25:077.29:370.110:283.86:577:13New Moon20Sun
21Mon3:536.45:237.310:200.711:052.66:587:11New Moon21Mon
22Tue5:096.65:407.411:021.511:451.36:597:09New Moon22Tue
23Wed6:226.85:597.511:452.77:017:07New Moon23Wed
24Thu7:347.06:207.612:280.112:303.97:027:04Waxing Crescent24Thu
25Fri8:467.26:447.71:14-0.81:185.07:047:02Waxing Crescent25Fri
26Sat10:047.47:117.62:02-1.32:125.97:057:00Waxing Crescent26Sat
27Sun11:287.57:407.42:54-1.43:226.67:066:58First Quarter27Sun
28Mon12:517.73:52-1.25:256.87:086:56First Quarter28Mon
29Tue2:027.74:56-0.77:096:54First Quarter29Tue
30Wed2:557.76:04-0.27:116:52First Quarter30Wed
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 11:08 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 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 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 Waning Gibbous (95% 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