Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Friday Harbor, WA.
Next low tide : 11:58 am (-1.1 ft)
Next high tide : in 23m at 4:02 am (6.6 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 - May 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:227.57:177.311:31-1.411:345.35:518:27New Moon1Mon
2Tue4:437.78:197.912:12-2.35:498:28New Moon2Tue
3Wed5:077.79:218.212:286.212:57-2.85:478:29Waxing Crescent3Wed
4Thu5:357.610:268.31:296.81:44-2.95:468:31Waxing Crescent4Thu
5Fri6:067.411:318.32:467.02:36-2.55:448:32Waxing Crescent5Fri
6Sat3:31-1.95:438:34First Quarter6Sat
7Sun12:308.24:31-1.05:418:35First Quarter7Sun
8Mon1:218.15:32-0.15:408:36First Quarter8Mon
9Tue2:037.911:35 AM4.58:594.36:330.95:388:38First Quarter9Tue
10Wed2:377.72:084.49:253.27:342.05:378:39Waxing Gibbous10Wed
11Thu3:037.63:514.89:532.18:313.05:358:41Waxing Gibbous11Thu
12Fri3:227.45:085.510:191.19:234.05:348:42Waxing Gibbous12Fri
13Sat3:347.26:116.210:430.210:124.95:338:43Waxing Gibbous13Sat
14Sun3:407.17:036.911:06-0.511:025.75:318:45Full Moon14Sun
15Mon3:467.07:487.411:30-1.011:576.25:308:46Full Moon15Mon
16Tue3:557.08:307.811:56-1.35:298:47Full Moon16Tue
17Wed4:086.99:117.912:596.612:26-1.55:288:49Full Moon17Wed
18Thu4:166.89:538.02:166.71:00-1.55:268:50Waning Gibbous18Thu
19Fri10:397.91:37-1.45:258:51Waning Gibbous19Fri
20Sat11:257.82:17-1.15:248:52Waning Gibbous20Sat
21Sun3:01-0.85:238:54Waning Gibbous21Sun
22Mon12:077.73:48-0.45:228:55Third Quarter22Mon
23Tue12:427.64:360.25:218:56Third Quarter23Tue
24Wed1:107.65:271.05:208:57Third Quarter24Wed
25Thu1:317.512:324.18:413.46:192.05:198:58Third Quarter25Thu
26Fri1:487.52:494.58:532.17:163.15:188:59Waning Crescent26Fri
27Sat2:047.64:265.49:170.78:174.35:179:01Waning Crescent27Sat
28Sun2:217.75:406.59:49-0.89:175.45:169:02Waning Crescent28Sun
29Mon2:417.96:427.410:25-2.010:166.35:169:03New Moon29Mon
30Tue3:068.17:378.211:05-3.011:177.05:159:04New Moon30Tue
31Wed3:358.18:298.611:50-3.55:149:05New Moon31Wed
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 8:00 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 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