Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 2h 26m at 2:09 am (5.5 ft)
Next high tide : 7:13 am (10.0 ft)
Sunset today : 9:06 pm
Sunrise tomorrow : 5:27 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Mar 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:0711.43:359.610:435.910:030.36:505:55Full Moon1Tue
2Wed5:2311.44:169.811:055.310:360.66:485:56Full Moon2Wed
3Thu5:3711.44:569.911:264.511:071.16:465:58Full Moon3Thu
4Fri5:5311.55:369.911:513.711:381.86:446:00Full Moon4Fri
5Sat6:1111.66:199.912:182.86:426:01Waning Gibbous5Sat
6Sun6:3311.67:049.912:102.712:501.96:406:03Waning Gibbous6Sun
7Mon6:5611.47:539.912:433.81:251.26:386:04Waning Gibbous7Mon
8Tue7:2111.28:489.71:185.02:040.66:366:06Waning Gibbous8Tue
9Wed7:4710.99:569.61:576.22:500.26:346:07Third Quarter9Wed
10Thu8:1610.511:279.62:437.43:430.06:326:09Third Quarter10Thu
11Fri8:5610.13:528.34:46-0.16:306:10Third Quarter11Fri
12Sat1:279.910:07 AM9.75:458.75:54-0.36:286:12Third Quarter12Sat
13Sun2:3710.511:41 AM9.67:358.37:03-0.76:266:13Waning Crescent13Sun
14Mon3:1711.11:069.88:347.48:04-0.96:246:15Waning Crescent14Mon
15Tue3:4811.52:1810.39:176.28:58-1.06:226:16Waning Crescent15Tue
16Wed4:1511.93:2210.79:574.79:47-0.66:206:18New Moon16Wed
17Thu4:4212.24:2211.010:363.210:330.26:186:19New Moon17Thu
18Fri5:0912.45:2111.111:161.711:171.46:166:21New Moon18Fri
19Sat5:3712.56:1911.211:570.46:146:22Waxing Crescent19Sat
20Sun6:0812.37:1811.012:022.812:38-0.56:126:23Waxing Crescent20Sun
21Mon6:4011.98:1910.812:484.31:21-0.96:106:25Waxing Crescent21Mon
22Tue7:1511.39:2610.61:375.72:06-0.96:086:26Waxing Crescent22Tue
23Wed7:5310.510:4710.32:356.92:56-0.46:056:28First Quarter23Wed
24Thu8:389.63:547.73:510.26:036:29First Quarter24Thu
25Fri12:2410.39:39 AM8.86:047.94:550.86:016:31First Quarter25Fri
26Sat1:4610.511:05 AM8.27:467.36:061.25:596:32First Quarter26Sat
27Sun2:4010.712:358.28:396.57:131.45:576:34Waxing Gibbous27Sun
28Mon3:1710.81:498.49:155.78:091.55:556:35Waxing Gibbous28Mon
29Tue3:4310.82:468.89:425.08:551.65:536:37Waxing Gibbous29Tue
30Wed4:0110.93:339.210:044.29:332.05:516:38Waxing Gibbous30Wed
31Thu4:1610.94:169.610:243.310:072.55:496:40Full Moon31Thu
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 4:41 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 Coupeville, Whidbey Island, WA?

Coupeville, Whidbey Island, WA is currently in a spring phase. Tonight's moon is 8% 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 Crescent (8% 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