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 (tomorrow) : 6:51 am (0.6 ft)
Next high tide : in 4h 10m at 10:50 pm (7.6 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 - Oct 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:027.64:12-0.66:136.47:126:50First Quarter1Mon
2Tue2:127.85:12-0.27:136:48First Quarter2Tue
3Wed3:077.86:180.27:156:46First Quarter3Wed
4Thu3:497.77:240.69:525.07:166:44Waxing Gibbous4Thu
5Fri12:585.44:237.68:250.910:184.57:186:42Waxing Gibbous5Fri
6Sat2:365.44:507.39:151.210:423.97:196:40Waxing Gibbous6Sat
7Sun3:455.65:107.19:571.611:043.37:206:38Waxing Gibbous7Sun
8Mon4:435.85:236.910:322.111:252.67:226:36Full Moon8Mon
9Tue5:366.05:336.811:052.811:471.97:236:34Full Moon9Tue
10Wed6:266.35:426.811:393.47:256:32Full Moon10Wed
11Thu7:156.65:536.812:111.212:134.27:266:30Full Moon11Thu
12Fri8:056.86:076.712:390.612:514.97:286:28Waning Gibbous12Fri
13Sat8:577.16:226.71:110.21:335.57:296:26Waning Gibbous13Sat
14Sun9:577.26:346.71:46-0.22:206.17:316:24Waning Gibbous14Sun
15Mon11:067.46:306.72:27-0.33:236.57:326:22Waning Gibbous15Mon
16Tue12:207.53:14-0.47:346:20Third Quarter16Tue
17Wed1:287.64:10-0.37:356:18Third Quarter17Wed
18Thu2:217.75:12-0.17:376:16Third Quarter18Thu
19Fri2:587.76:180.19:135.47:386:14Waning Crescent19Fri
20Sat3:277.77:220.49:244.57:406:13Waning Crescent20Sat
21Sun1:405.63:517.78:220.89:503.37:426:11Waning Crescent21Sun
22Mon3:205.94:137.79:161.510:232.07:436:09Waning Crescent22Mon
23Tue4:426.44:347.710:062.411:000.67:456:07New Moon23Tue
24Wed5:556.94:547.810:553.511:39-0.57:466:05New Moon24Wed
25Thu7:037.55:167.811:454.67:486:03New Moon25Thu
26Fri8:067.95:407.712:21-1.312:405.57:496:02Waxing Crescent26Fri
27Sat9:108.26:057.51:04-1.81:426.37:516:00Waxing Crescent27Sat
28Sun9:168.45:317.21:48-1.82:046.76:524:58Waxing Crescent28Sun
29Mon10:228.41:35-1.46:544:57First Quarter29Mon
30Tue11:258.32:26-0.86:564:55First Quarter30Tue
31Wed12:228.23:220.06:574:53First Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9449880)

Common Questions About Friday Harbor, WA Tides

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

Slack tide in Friday Harbor, WA is approximately 2:50 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 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