Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 3h 31m at 8:09 pm (7.8 ft)
Next high tide (tomorrow) : 12:52 am (10.0 ft)
Sunset today : 8:59 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Jan 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:2013.35:2911.212:417.48:014:27Waning Gibbous1Sat
2Sun8:0513.36:2910.612:29-3.01:396.88:014:28Waning Gibbous2Sun
3Mon8:4813.27:359.71:18-2.02:416.18:014:29Waning Gibbous3Mon
4Tue9:3213.18:498.82:08-0.63:465.28:014:30Third Quarter4Tue
5Wed10:1512.810:178.13:001.14:534.18:014:31Third Quarter5Wed
6Thu10:5912.53:562.95:552.98:004:32Third Quarter6Thu
7Fri12:048.011:42 AM12.15:014.76:511.78:004:33Third Quarter7Fri
8Sat1:538.712:2511.76:186.27:390.78:004:34Waning Crescent8Sat
9Sun3:179.81:0711.37:437.28:210.07:594:35Waning Crescent9Sun
10Mon4:1710.81:4811.08:597.68:59-0.67:594:37Waning Crescent10Mon
11Tue5:0311.52:2810.710:007.89:34-1.07:584:38Waning Crescent11Tue
12Wed5:4111.93:0710.510:477.810:08-1.27:584:39New Moon12Wed
13Thu6:1212.13:4510.311:267.710:42-1.27:574:41New Moon13Thu
14Fri6:3812.24:2410.211:597.511:16-1.27:574:42New Moon14Fri
15Sat7:0212.25:0410.012:307.37:564:43New Moon15Sat
16Sun7:2612.25:469.81:026.97:554:45Waxing Crescent16Sun
17Mon7:5312.26:299.512:27-0.61:386.57:554:46Waxing Crescent17Mon
18Tue8:2112.27:179.11:04-0.12:185.97:544:48Waxing Crescent18Tue
19Wed8:5212.28:128.61:410.83:025.27:534:49Waxing Crescent19Wed
20Thu9:2412.19:178.22:191.93:494.37:524:50First Quarter20Thu
21Fri9:5811.910:368.03:013.34:403.37:514:52First Quarter21Fri
22Sat10:3411.73:494.85:342.17:504:53First Quarter22Sat
23Sun12:118.311:15 AM11.64:516.36:270.97:494:55First Quarter23Sun
24Mon1:549.212:0111.56:127.57:21-0.47:484:57Waxing Gibbous24Mon
25Tue3:1410.312:5211.57:388.18:13-1.67:474:58Waxing Gibbous25Tue
26Wed4:1111.31:4711.68:528.29:03-2.57:465:00Waxing Gibbous26Wed
27Thu4:5612.12:4211.79:528.09:52-3.17:455:01Full Moon27Thu
28Fri5:3712.63:3811.710:447.510:40-3.27:445:03Full Moon28Fri
29Sat6:1512.94:3411.611:346.811:28-2.97:435:04Full Moon29Sat
30Sun6:5313.15:3211.212:236.07:415:06Waning Gibbous30Sun
31Mon7:3013.26:3210.612:14-2.21:145.27:405:08Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9447929)

Common Questions About Coupeville, Whidbey Island, WA Tides

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What time does the tide turn (slack tide) in Coupeville, Whidbey Island, WA today?

Slack tide in Coupeville, Whidbey Island, WA is approximately 10:30 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 Coupeville, Whidbey Island, WA?

Coupeville, Whidbey Island, WA is currently in a transitional phase. Tonight's moon is 72% 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 Coupeville, Whidbey Island, 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 Coupeville, Whidbey Island, WA?

Tide predictions for Coupeville, Whidbey Island, 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 Coupeville, Whidbey Island, WA?

Tide data for Coupeville, Whidbey Island, WA is sourced from NOAA Station #9447929. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9447929.

What is the moon phase in Coupeville, Whidbey Island, WA tonight?

Tonight the moon over Coupeville, Whidbey Island, WA is Waxing Gibbous (72% illuminated). This places Coupeville, Whidbey Island, 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.

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