Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Sunday, July 19, 2026
The tide is currently falling in Friday Harbor, WA.
Next low tide : in 4h 30m at 2:49 pm (1.5 ft)
Next high tide : 10:13 pm (7.9 ft)
Sunset today : 9:05 pm
Sunrise tomorrow : 5:30 am
Moon phase : First Quarter (33% illuminated)
Tide Station Location : Station #9449880
Common Questions About Tides

Friday Harbor, WA Tides - Aug 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:387.28:058.112:076.611:46 AM-1.95:468:49Full Moon1Thu
2Fri4:376.78:347.912:596.112:26-1.45:488:48Waning Gibbous2Fri
3Sat5:396.28:597.71:495.41:04-0.75:498:46Waning Gibbous3Sat
4Sun6:425.79:217.52:394.71:390.35:508:45Waning Gibbous4Sun
5Mon7:495.19:397.33:284.02:131.35:528:43Waning Gibbous5Mon
6Tue9:084.79:547.24:153.22:452.55:538:42Third Quarter6Tue
7Wed10:564.610:087.14:592.43:173.75:548:40Third Quarter7Wed
8Thu1:254.95:411.73:494.85:568:38Third Quarter8Thu
9Fri10:447.06:241.15:578:37Third Quarter9Fri
10Sat11:097.07:080.55:598:35Third Quarter10Sat
11Sun5:237.17:540.09:016.86:008:33Waning Crescent11Sun
12Mon5:527.48:39-0.410:036.86:018:32Waning Crescent12Mon
13Tue12:307.06:207.69:23-0.910:316.86:038:30Waning Crescent13Tue
14Wed1:297.06:467.710:05-1.310:556.66:048:28New Moon14Wed
15Thu2:327.17:107.710:45-1.611:286.26:058:26New Moon15Thu
16Fri3:347.07:337.711:25-1.66:078:25New Moon16Fri
17Sat4:376.87:547.612:095.612:05-1.36:088:23New Moon17Sat
18Sun5:466.58:157.612:554.812:45-0.66:108:21Waxing Crescent18Sun
19Mon6:596.18:367.61:453.81:240.56:118:19Waxing Crescent19Mon
20Tue8:185.68:577.72:372.72:041.86:128:17Waxing Crescent20Tue
21Wed9:545.49:187.73:311.62:463.36:148:15First Quarter21Wed
22Thu11:505.69:427.74:270.63:324.76:158:13First Quarter22Thu
23Fri1:556.25:25-0.24:335.96:178:11First Quarter23Fri
24Sat3:297.06:24-0.76:066.76:188:10First Quarter24Sat
25Sun4:267.57:25-1.08:226.96:198:08Waxing Gibbous25Sun
26Mon5:097.88:24-1.29:446.76:218:06Waxing Gibbous26Mon
27Tue12:447.15:477.99:18-1.210:346.36:228:04Waxing Gibbous27Tue
28Wed2:006.86:197.810:06-1.111:145.76:248:02Full Moon28Wed
29Thu3:136.66:487.610:49-0.811:515.16:258:00Full Moon29Thu
30Fri4:186.47:127.411:28-0.36:267:58Full Moon30Fri
31Sat5:186.27:317.212:274.512:040.36:287:56Full Moon31Sat
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 6:31 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 transitional phase. Tonight's moon is 33% 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 shifting between spring and neap.

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 (33% illuminated). This places Friday Harbor, WA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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