Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Friday Harbor, WA.
Next low tide : in 1h 00m at 10:51 am (-1.2 ft)
Next high tide : 7:31 pm (7.7 ft)
Sunset today : 8:55 pm
Sunrise tomorrow : 5:41 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9449880
Common Questions About Tides

Friday Harbor, WA Tides - Sep 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:307.16:217.610:17-1.510:555.46:307:52Full Moon1Wed
2Thu3:427.16:467.611:02-1.311:414.56:327:50Full Moon2Thu
3Fri4:546.97:107.611:46-0.76:337:48Full Moon3Fri
4Sat6:086.77:347.612:303.412:300.36:357:46Waning Gibbous4Sat
5Sun7:236.47:577.61:212.41:141.56:367:44Waning Gibbous5Sun
6Mon8:436.28:217.62:121.31:592.96:377:42Waning Gibbous6Mon
7Tue10:136.28:467.53:060.52:484.36:397:40Third Quarter7Tue
8Wed11:556.49:137.34:020.03:495.46:407:38Third Quarter8Wed
9Thu1:376.95:01-0.35:226.26:427:36Third Quarter9Thu
10Fri2:567.36:02-0.47:386.46:437:34Third Quarter10Fri
11Sat3:527.67:05-0.39:136.26:447:31Waning Crescent11Sat
12Sun4:367.78:07-0.210:035.86:467:29Waning Crescent12Sun
13Mon12:586.15:127.79:020.010:375.36:477:27Waning Crescent13Mon
14Tue2:246.05:437.59:490.211:064.86:487:25Waning Crescent14Tue
15Wed3:316.06:077.310:280.511:324.36:507:23New Moon15Wed
16Thu4:276.06:267.011:030.911:563.76:517:21New Moon16Thu
17Fri5:206.06:396.911:351.46:537:19New Moon17Fri
18Sat6:126.06:516.812:213.112:072.06:547:17New Moon18Sat
19Sun7:056.17:026.712:492.512:392.86:557:15Waxing Crescent19Sun
20Mon7:586.17:156.71:181.81:133.66:577:12Waxing Crescent20Mon
21Tue8:566.27:306.71:511.31:494.46:587:10Waxing Crescent21Tue
22Wed10:056.37:466.62:280.92:305.27:007:08Waxing Crescent22Wed
23Thu11:276.58:026.63:090.53:215.97:017:06First Quarter23Thu
24Fri1:016.73:580.34:376.47:027:04First Quarter24Fri
25Sat2:247.14:540.27:047:02First Quarter25Sat
26Sun3:177.35:570.07:057:00First Quarter26Sun
27Mon3:537.47:01-0.29:176.07:076:58Waxing Gibbous27Mon
28Tue4:237.58:04-0.39:345.47:086:56Waxing Gibbous28Tue
29Wed1:316.34:497.59:00-0.310:044.57:106:53Waxing Gibbous29Wed
30Thu3:006.45:127.59:490.110:413.47:116:51Full Moon30Thu
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 3:11 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 99% 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 Full Moon (99% 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