Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Friday Harbor, WA.
Next low tide : 6:25 am (3.4 ft)
Next high tide (tomorrow) : in 34m at 11:25 pm (8.2 ft)
Sunset today : 9:17 pm
Sunrise tomorrow : 5:09 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9449880
Common Questions About Tides

Friday Harbor, WA Tides - Oct 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:226.06:006.911:122.111:562.57:126:50Full Moon1Thu
2Fri6:146.26:126.811:462.77:146:48Full Moon2Fri
3Sat7:036.36:236.712:221.812:203.47:156:46Full Moon3Sat
4Sun7:526.56:366.612:501.312:574.17:176:43Waning Gibbous4Sun
5Mon8:446.76:526.61:200.81:364.87:186:41Waning Gibbous5Mon
6Tue9:416.87:106.51:540.52:215.47:196:39Waning Gibbous6Tue
7Wed10:486.97:266.42:330.33:175.97:216:37Waning Gibbous7Wed
8Thu12:027.03:170.34:566.37:226:35Third Quarter8Thu
9Fri1:177.24:080.37:246:33Third Quarter9Fri
10Sat2:177.35:070.37:256:31Third Quarter10Sat
11Sun3:007.46:100.49:205.67:276:29Third Quarter11Sun
12Mon3:337.57:140.49:235.07:286:27Waning Crescent12Mon
13Tue1:015.73:597.58:140.59:424.17:306:25Waning Crescent13Tue
14Wed2:375.94:237.59:070.910:123.07:316:23Waning Crescent14Wed
15Thu3:586.24:457.59:561.410:471.87:336:21New Moon15Thu
16Fri5:126.75:087.610:442.311:270.67:346:20New Moon16Fri
17Sat6:227.15:317.611:313.37:366:18New Moon17Sat
18Sun7:287.55:567.612:10-0.412:214.37:376:16Waxing Crescent18Sun
19Mon8:357.86:247.612:54-1.21:165.27:396:14Waxing Crescent19Mon
20Tue9:448.06:537.31:41-1.52:196.07:406:12Waxing Crescent20Tue
21Wed10:568.17:247.02:30-1.53:476.47:426:10First Quarter21Wed
22Thu12:078.23:23-1.15:586.37:436:08First Quarter22Thu
23Fri1:128.14:21-0.57:456:07First Quarter23Fri
24Sat2:078.15:240.27:476:05First Quarter24Sat
25Sun2:517.96:300.99:224.47:486:03Waxing Gibbous25Sun
26Mon1:014.93:267.87:351.69:513.77:506:01Waxing Gibbous26Mon
27Tue2:485.13:547.58:342.210:172.97:515:59Waxing Gibbous27Tue
28Wed4:025.54:137.39:232.810:402.27:535:58Waxing Gibbous28Wed
29Thu5:025.94:277.110:053.411:011.57:545:56Full Moon29Thu
30Fri5:556.34:357.010:434.111:220.97:565:54Full Moon30Fri
31Sat6:436.84:446.911:224.711:460.37:575:53Full Moon31Sat
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 2:55 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 transitional phase. Tonight's moon is 38% 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 (38% 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