Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Coupeville, Whidbey Island, WA.
Next low tide : 6:35 pm (8.1 ft)
Next high tide : in 7h 23m at 2:42 pm (9.3 ft)
Sunset today : 8:38 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Dec 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:4411.03:1011.49:486.110:01-0.97:404:19Full Moon1Thu
2Fri5:2811.53:4311.110:376.410:34-1.27:424:18Full Moon2Fri
3Sat6:0611.94:1710.711:216.711:07-1.37:434:18Full Moon3Sat
4Sun6:4112.04:5210.412:046.97:444:17Full Moon4Sun
5Mon7:1312.15:309.912:467.07:454:17Waning Gibbous5Mon
6Tue7:4612.16:129.512:17-0.91:306.97:464:17Waning Gibbous6Tue
7Wed8:2112.16:579.012:54-0.42:176.77:474:17Waning Gibbous7Wed
8Thu8:5812.07:488.41:340.23:086.47:484:17Waning Gibbous8Thu
9Fri9:3811.98:487.92:161.04:045.97:494:16Third Quarter9Fri
10Sat10:2011.810:007.53:011.95:015.37:504:16Third Quarter10Sat
11Sun11:0311.711:237.53:513.05:534.47:514:16Third Quarter11Sun
12Mon11:4511.74:484.06:403.37:524:16Third Quarter12Mon
13Tue12:487.912:2711.75:515.07:222.07:534:16Waning Crescent13Tue
14Wed2:048.81:0711.86:575.78:030.77:544:17Waning Crescent14Wed
15Thu3:069.81:4611.98:016.38:43-0.67:554:17Waning Crescent15Thu
16Fri3:5810.72:2712.08:596.69:25-1.77:554:17Waning Crescent16Fri
17Sat4:4511.63:0912.19:536.810:08-2.67:564:17New Moon17Sat
18Sun5:3112.33:5412.010:446.910:52-3.17:574:18New Moon18Sun
19Mon6:1612.84:4211.811:366.811:37-3.17:574:18New Moon19Mon
20Tue7:0113.15:3511.412:306.57:584:18Waxing Crescent20Tue
21Wed7:4713.26:3210.712:25-2.71:276.17:584:19Waxing Crescent21Wed
22Thu8:3313.27:369.91:13-1.82:285.67:594:19Waxing Crescent22Thu
23Fri9:2013.08:479.02:03-0.53:344.87:594:20First Quarter23Fri
24Sat10:0812.810:128.42:561.14:433.98:004:21First Quarter24Sat
25Sun10:5712.511:538.23:542.75:502.98:004:21First Quarter25Sun
26Mon11:4612.25:014.36:501.98:004:22First Quarter26Mon
27Tue1:378.812:3411.96:175.67:410.98:014:23Waxing Gibbous27Tue
28Wed2:599.71:2011.57:376.48:260.18:014:23Waxing Gibbous28Wed
29Thu4:0010.62:0311.28:496.99:05-0.58:014:24Waxing Gibbous29Thu
30Fri4:4811.32:4211.09:477.19:40-0.88:014:25Waxing Gibbous30Fri
31Sat5:2711.73:2010.710:357.110:14-1.18:014:26Full Moon31Sat
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 4:38 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 31% 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 Third Quarter (31% 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.

LEARN MORE ABOUT OUR TIDE DATA