Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Friday Harbor, WA.
Next low tide : in 4h 20m at 11:58 am (-1.1 ft)
Next high tide : 8:11 pm (7.6 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:44 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9449880
Common Questions About Tides

Friday Harbor, WA Tides - Jan 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:324.610:39 AM8.23:204.46:321.18:034:27First Quarter1Mon
2Tue10:578.47:11-0.28:034:28Waxing Gibbous2Tue
3Wed11:208.67:52-1.48:034:29Waxing Gibbous3Wed
4Thu5:078.111:51 AM8.77:267.88:36-2.38:034:30Waxing Gibbous4Thu
5Fri5:428.812:328.88:498.29:22-2.98:034:31Full Moon5Fri
6Sat6:189.21:258.79:578.210:09-3.28:024:32Full Moon6Sat
7Sun6:549.32:268.411:027.910:57-3.18:024:33Full Moon7Sun
8Mon7:309.33:307.912:087.48:024:35Waning Gibbous8Mon
9Tue8:049.24:417.21:166.68:014:36Waning Gibbous9Tue
10Wed8:369.05:566.312:28-1.72:275.68:014:37Waning Gibbous10Wed
11Thu9:068.87:215.41:11-0.53:344.58:004:38Waning Gibbous11Thu
12Fri9:338.79:164.71:511.04:323.38:004:40Third Quarter12Fri
13Sat9:568.511:504.72:292.65:232.17:594:41Third Quarter13Sat
14Sun10:158.33:064.26:101.17:594:42Third Quarter14Sun
15Mon10:308.16:540.47:584:44Third Quarter15Mon
16Tue10:448.07:34-0.27:574:45Waning Crescent16Tue
17Wed4:457.810:59 AM7.88:007.58:12-0.57:564:47Waning Crescent17Wed
18Thu5:178.38:48-0.87:564:48Waning Crescent18Thu
19Fri5:488.69:23-0.97:554:50Waning Crescent19Fri
20Sat6:168.69:57-1.07:544:51New Moon20Sat
21Sun6:438.61:567.211:577.110:31-1.07:534:53New Moon21Sun
22Mon7:078.42:517.012:206.87:524:54New Moon22Mon
23Tue7:288.33:446.712:466.47:514:56New Moon23Tue
24Wed7:478.24:416.31:175.97:504:57Waxing Crescent24Wed
25Thu8:048.25:445.812:08-0.21:545.27:494:59Waxing Crescent25Thu
26Fri8:208.16:535.312:390.62:334.37:485:00Waxing Crescent26Fri
27Sat8:358.18:184.91:091.63:153.37:465:02Waxing Crescent27Sat
28Sun8:498.110:204.91:382.93:592.27:455:04First Quarter28Sun
29Mon9:048.22:044.24:451.27:445:05First Quarter29Mon
30Tue9:228.35:350.17:435:07First Quarter30Tue
31Wed9:458.46:29-0.87:415:08Waxing Gibbous31Wed
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 4:04 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