Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 3h 56m at 9:06 am (-0.3 ft)
Next high tide : 5:39 pm (10.9 ft)
Sunset today : 8:56 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Sep 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:369.610:5210.84:410.44:565.56:297:51Third Quarter1Mon
2Tue1:159.65:440.36:236.36:307:49Third Quarter2Tue
3Wed2:4610.16:510.28:016.56:317:47Waning Crescent3Wed
4Thu1:059.83:5110.77:560.19:196.16:337:45Waning Crescent4Thu
5Fri2:159.74:3911.18:550.010:145.56:347:43Waning Crescent5Fri
6Sat3:179.75:1711.39:470.010:565.06:367:41Waning Crescent6Sat
7Sun4:099.95:4611.310:320.111:304.46:377:39New Moon7Sun
8Mon4:5510.06:1111.211:110.46:387:37New Moon8Mon
9Tue5:3610.16:3211.112:003.911:48 AM0.86:407:35New Moon9Tue
10Wed6:1610.16:5511.012:283.412:231.36:417:33New Moon10Wed
11Thu6:5610.17:2010.912:572.912:582.06:427:31Waxing Crescent11Thu
12Fri7:3710.07:4910.81:282.41:332.86:447:29Waxing Crescent12Fri
13Sat8:219.98:2010.52:022.02:103.76:457:27Waxing Crescent13Sat
14Sun9:099.78:5310.22:391.72:504.66:477:25Waxing Crescent14Sun
15Mon10:029.59:309.83:211.53:365.56:487:23First Quarter15Mon
16Tue11:049.310:149.34:071.44:336.36:497:20First Quarter16Tue
17Wed12:209.35:011.35:486.96:517:18First Quarter17Wed
18Thu1:429.66:011.27:176.96:527:16First Quarter18Thu
19Fri12:168.82:4810.17:041.08:306.66:537:14Waxing Gibbous19Fri
20Sat1:259.03:3510.68:050.69:195.96:557:12Waxing Gibbous20Sat
21Sun2:299.54:1211.09:000.210:004.96:567:10Waxing Gibbous21Sun
22Mon3:2610.14:4611.49:52-0.110:393.86:587:08Waxing Gibbous22Mon
23Tue4:2010.75:1911.810:390.011:192.66:597:06Full Moon23Tue
24Wed5:1411.25:5312.011:260.37:007:04Full Moon24Wed
25Thu6:0811.56:2812.112:001.512:121.17:027:02Full Moon25Thu
26Fri7:0311.67:0612.112:440.412:592.17:037:00Waning Gibbous26Fri
27Sat8:0111.57:4611.81:29-0.31:483.37:056:57Waning Gibbous27Sat
28Sun9:0311.28:3011.22:17-0.72:424.57:066:55Waning Gibbous28Sun
29Mon10:1110.99:2010.53:09-0.73:445.57:076:53Third Quarter29Mon
30Tue11:2810.710:189.74:04-0.45:026.37:096:51Third Quarter30Tue
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 1:22 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 spring phase. Tonight's moon is 87% 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 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 (87% illuminated). This places Coupeville, Whidbey Island, 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